977014642 has 4 divisors (see below), whose sum is σ = 1465521966. Its totient is φ = 488507320.

The previous prime is 977014627. The next prime is 977014679. The reversal of 977014642 is 246410779.

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

It can be written as a sum of positive squares in only one way, i.e., 948701601 + 28313041 = 30801^2 + 5321^2 .

It is a super-2 number, since 2×977014642² = 1909115221364776328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 977014595 and 977014604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244253659 + ... + 244253662.

Almost surely, 2^977014642 is an apocalyptic number.

977014642 is a deficient number, since it is larger than the sum of its proper divisors (488507324).

977014642 is a wasteful number, since it uses less digits than its factorization.

977014642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488507323.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 977014642 is about 31257.2334348387. The cubic root of 977014642 is about 992.2787497354.

The spelling of 977014642 in words is "nine hundred seventy-seven million, fourteen thousand, six hundred forty-two".