772891 has 8 divisors (see below), whose sum is σ = 905184. Its totient is φ = 646080.

The previous prime is 772867. The next prime is 772903. The reversal of 772891 is 198277.

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

It is a cyclic number.

It is not a de Polignac number, because 772891 - 2⁵ = 772859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (772091) 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, 1060 + ... + 1633.

It is an arithmetic number, because the mean of its divisors is an integer number (113148).

2⁷⁷²⁸⁹¹ is an apocalyptic number.

772891 is a deficient number, since it is larger than the sum of its proper divisors (132293).

772891 is a wasteful number, since it uses less digits than its factorization.

772891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741.

The product of its digits is 7056, while the sum is 34.

The square root of 772891 is about 879.1421955520. The cubic root of 772891 is about 91.7711308605.

The spelling of 772891 in words is "seven hundred seventy-two thousand, eight hundred ninety-one".