977232986 has 4 divisors (see below), whose sum is σ = 1465849482. Its totient is φ = 488616492.

The previous prime is 977232983. The next prime is 977233001. The reversal of 977232986 is 689232779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 689232779 = 1031 ⋅668509.

It can be written as a sum of positive squares in only one way, i.e., 783160225 + 194072761 = 27985^2 + 13931^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (977232983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244308245 + ... + 244308248.

Almost surely, 2^977232986 is an apocalyptic number.

977232986 is a deficient number, since it is larger than the sum of its proper divisors (488616496).

977232986 is a wasteful number, since it uses less digits than its factorization.

977232986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488616495.

The product of its digits is 2286144, while the sum is 53.

The square root of 977232986 is about 31260.7259352690. The cubic root of 977232986 is about 992.3526626413.

The spelling of 977232986 in words is "nine hundred seventy-seven million, two hundred thirty-two thousand, nine hundred eighty-six".