772971 has 4 divisors (see below), whose sum is σ = 1030632. Its totient is φ = 515312.

The previous prime is 772963. The next prime is 772987. The reversal of 772971 is 179277.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 772971 - 2³ = 772963 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (772921) 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, 128826 + ... + 128831.

It is an arithmetic number, because the mean of its divisors is an integer number (257658).

2⁷⁷²⁹⁷¹ is an apocalyptic number.

772971 is a deficient number, since it is larger than the sum of its proper divisors (257661).

772971 is a wasteful number, since it uses less digits than its factorization.

772971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257660.

The product of its digits is 6174, while the sum is 33.

The square root of 772971 is about 879.1876932715. The cubic root of 772971 is about 91.7742970841.

The spelling of 772971 in words is "seven hundred seventy-two thousand, nine hundred seventy-one".