977651473 has 4 divisors (see below), whose sum is σ = 977747968. Its totient is φ = 977554980.

The previous prime is 977651429. The next prime is 977651489. The reversal of 977651473 is 374156779.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-977651473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (977651173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30993 + ... + 53998.

It is an arithmetic number, because the mean of its divisors is an integer number (244436992).

Almost surely, 2^977651473 is an apocalyptic number.

It is an amenable number.

977651473 is a deficient number, since it is larger than the sum of its proper divisors (96495).

977651473 is a wasteful number, since it uses less digits than its factorization.

977651473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96494.

The product of its digits is 1111320, while the sum is 49.

The square root of 977651473 is about 31267.4187134148. The cubic root of 977651473 is about 992.4942963589.

The spelling of 977651473 in words is "nine hundred seventy-seven million, six hundred fifty-one thousand, four hundred seventy-three".