68654413 has 4 divisors (see below), whose sum is σ = 69284380. Its totient is φ = 68024448.

The previous prime is 68654389. The next prime is 68654437. The reversal of 68654413 is 31445686.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (68654389) and next prime (68654437).

It can be written as a sum of positive squares in 2 ways, for example, as 38217124 + 30437289 = 6182^2 + 5517^2 .

It is a 4-Lehmer number, since φ(68654413) divides (68654413-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 68654413 - 2⁹ = 68653901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68654813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314820 + ... + 315037.

It is an arithmetic number, because the mean of its divisors is an integer number (17321095).

Almost surely, 2^68654413 is an apocalyptic number.

It is an amenable number.

68654413 is a deficient number, since it is larger than the sum of its proper divisors (629967).

68654413 is a wasteful number, since it uses less digits than its factorization.

68654413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629966.

The product of its digits is 69120, while the sum is 37.

The square root of 68654413 is about 8285.7958579728. The cubic root of 68654413 is about 409.4706891518.

It can be divided in two parts, 68 and 654413, that added together give a square (654481 = 809²).

The spelling of 68654413 in words is "sixty-eight million, six hundred fifty-four thousand, four hundred thirteen".