68710539 has 12 divisors (see below), whose sum is σ = 94668648. Its totient is φ = 44327520.

The previous prime is 68710519. The next prime is 68710561. The reversal of 68710539 is 93501786.

It is not a de Polignac number, because 68710539 - 2⁵ = 68710507 is a prime.

It is a super-2 number, since 2×68710539² = 9442276339341042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68710497 and 68710506.

It is not an unprimeable number, because it can be changed into a prime (68710519) 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, 9034 + ... + 14799.

It is an arithmetic number, because the mean of its divisors is an integer number (7889054).

Almost surely, 2^68710539 is an apocalyptic number.

68710539 is a deficient number, since it is larger than the sum of its proper divisors (25958109).

68710539 is a wasteful number, since it uses less digits than its factorization.

68710539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23898 (or 23867 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 68710539 is about 8289.1820464989. The cubic root of 68710539 is about 409.5822415441.

The spelling of 68710539 in words is "sixty-eight million, seven hundred ten thousand, five hundred thirty-nine".