76400807 has 4 divisors (see below), whose sum is σ = 87315216. Its totient is φ = 65486400.

The previous prime is 76400801. The next prime is 76400861. The reversal of 76400807 is 70800467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70800467 = 1103 ⋅64189.

It is not a de Polignac number, because 76400807 - 2¹⁴ = 76384423 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 (76400801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5457194 + ... + 5457207.

It is an arithmetic number, because the mean of its divisors is an integer number (21828804).

Almost surely, 2^76400807 is an apocalyptic number.

76400807 is a deficient number, since it is larger than the sum of its proper divisors (10914409).

76400807 is a wasteful number, since it uses less digits than its factorization.

76400807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10914408.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 76400807 is about 8740.7555165443. The cubic root of 76400807 is about 424.3256794531.

The spelling of 76400807 in words is "seventy-six million, four hundred thousand, eight hundred seven".