68856007 has 16 divisors (see below), whose sum is σ = 77271840. Its totient is φ = 60825600.

The previous prime is 68855999. The next prime is 68856023. The reversal of 68856007 is 70065886.

It is not a de Polignac number, because 68856007 - 2³ = 68855999 is a prime.

It is a super-2 number, since 2×68856007² = 9482299399968098, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68856037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59143 + ... + 60295.

It is an arithmetic number, because the mean of its divisors is an integer number (4829490).

Almost surely, 2^68856007 is an apocalyptic number.

68856007 is a deficient number, since it is larger than the sum of its proper divisors (8415833).

68856007 is a wasteful number, since it uses less digits than its factorization.

68856007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 68856007 is about 8297.9519762409. The cubic root of 68856007 is about 409.8710818157.

The spelling of 68856007 in words is "sixty-eight million, eight hundred fifty-six thousand, seven".