68539437 has 12 divisors (see below), whose sum is σ = 99078720. Its totient is φ = 45657288.

The previous prime is 68539433. The next prime is 68539447. The reversal of 68539437 is 73493586.

It is not a de Polignac number, because 68539437 - 2² = 68539433 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 68539392 and 68539401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68539433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14764 + ... + 18842.

It is an arithmetic number, because the mean of its divisors is an integer number (8256560).

Almost surely, 2^68539437 is an apocalyptic number.

It is an amenable number.

68539437 is a deficient number, since it is larger than the sum of its proper divisors (30539283).

68539437 is a wasteful number, since it uses less digits than its factorization.

68539437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5952 (or 5949 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 68539437 is about 8278.8548121102. The cubic root of 68539437 is about 409.2419803394.

It can be divided in two parts, 6853 and 9437, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 68539437 in words is "sixty-eight million, five hundred thirty-nine thousand, four hundred thirty-seven".