772801087 has 12 divisors (see below), whose sum is σ = 794854360. Its totient is φ = 751343040.

The previous prime is 772801063. The next prime is 772801097. The reversal of 772801087 is 780108277.

It is a happy number.

It is not a de Polignac number, because 772801087 - 2¹⁵ = 772768319 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 (772801097) 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, 636493 + ... + 637705.

Almost surely, 2^772801087 is an apocalyptic number.

772801087 is a deficient number, since it is larger than the sum of its proper divisors (22053273).

772801087 is a wasteful number, since it uses less digits than its factorization.

772801087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 40.

The square root of 772801087 is about 27799.3001170893. The cubic root of 772801087 is about 917.6757204142.

The spelling of 772801087 in words is "seven hundred seventy-two million, eight hundred one thousand, eighty-seven".