68776807 has 8 divisors (see below), whose sum is σ = 75090960. Its totient is φ = 62472960.

The previous prime is 68776793. The next prime is 68776811. The reversal of 68776807 is 70867786.

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

It is a de Polignac number, because none of the positive numbers 2^k-68776807 is a prime.

It is a super-2 number, since 2×68776807² = 9460498362230498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62776807) 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, 20119 + ... + 23287.

It is an arithmetic number, because the mean of its divisors is an integer number (9386370).

Almost surely, 2^68776807 is an apocalyptic number.

68776807 is a deficient number, since it is larger than the sum of its proper divisors (6314153).

68776807 is a wasteful number, since it uses less digits than its factorization.

68776807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153.

The product of its (nonzero) digits is 790272, while the sum is 49.

The square root of 68776807 is about 8293.1783412634. The cubic root of 68776807 is about 409.7138733397.

The spelling of 68776807 in words is "sixty-eight million, seven hundred seventy-six thousand, eight hundred seven".