977547652 has 24 divisors (see below), whose sum is σ = 1719325440. Its totient is φ = 486319680.

The previous prime is 977547647. The next prime is 977547691. The reversal of 977547652 is 256745779.

It is a self number, because there is not a number n which added to its sum of digits gives 977547652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1063249 + ... + 1064167.

It is an arithmetic number, because the mean of its divisors is an integer number (71638560).

Almost surely, 2^977547652 is an apocalyptic number.

It is an amenable number.

977547652 is a deficient number, since it is larger than the sum of its proper divisors (741777788).

977547652 is a wasteful number, since it uses less digits than its factorization.

977547652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1969 counting only the distinct ones).

The product of its digits is 3704400, while the sum is 52.

The square root of 977547652 is about 31265.7584587357. The cubic root of 977547652 is about 992.4591627076.

The spelling of 977547652 in words is "nine hundred seventy-seven million, five hundred forty-seven thousand, six hundred fifty-two".