68648361 has 4 divisors (see below), whose sum is σ = 91531152. Its totient is φ = 45765572.

The previous prime is 68648351. The next prime is 68648369. The reversal of 68648361 is 16384686.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68648361 - 2⁷ = 68648233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68648369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11441391 + ... + 11441396.

It is an arithmetic number, because the mean of its divisors is an integer number (22882788).

Almost surely, 2^68648361 is an apocalyptic number.

It is an amenable number.

68648361 is a deficient number, since it is larger than the sum of its proper divisors (22882791).

68648361 is a wasteful number, since it uses less digits than its factorization.

68648361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22882790.

The product of its digits is 165888, while the sum is 42.

The square root of 68648361 is about 8285.4306466230. The cubic root of 68648361 is about 409.4586569588.

It can be divided in two parts, 6864 and 8361, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 68648361 in words is "sixty-eight million, six hundred forty-eight thousand, three hundred sixty-one".