68349437 has 8 divisors (see below), whose sum is σ = 74146296. Its totient is φ = 62629632.

The previous prime is 68349373. The next prime is 68349443. The reversal of 68349437 is 73494386.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1207801 + 67141636 = 1099^2 + 8194^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68349437 - 2⁶ = 68349373 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 (68349467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17408 + ... + 20969.

It is an arithmetic number, because the mean of its divisors is an integer number (9268287).

Almost surely, 2^68349437 is an apocalyptic number.

It is an amenable number.

68349437 is a deficient number, since it is larger than the sum of its proper divisors (5796859).

68349437 is a wasteful number, since it uses less digits than its factorization.

68349437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38527.

The product of its digits is 435456, while the sum is 44.

The square root of 68349437 is about 8267.3718314831. The cubic root of 68349437 is about 408.8634735005.

It can be divided in two parts, 68349 and 437, that added together give a palindrome (68786).

The spelling of 68349437 in words is "sixty-eight million, three hundred forty-nine thousand, four hundred thirty-seven".