986231965 has 8 divisors (see below), whose sum is σ = 1253094840. Its totient is φ = 742574592.

The previous prime is 986231941. The next prime is 986231969. The reversal of 986231965 is 569132689.

It can be written as a sum of positive squares in 4 ways, for example, as 187717401 + 798514564 = 13701^2 + 28258^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 986231965 - 2⁵ = 986231933 is a prime.

It is a super-2 number, since 2×986231965² = 1945306977575522450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986231969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5801280 + ... + 5801449.

It is an arithmetic number, because the mean of its divisors is an integer number (156636855).

Almost surely, 2^986231965 is an apocalyptic number.

It is an amenable number.

986231965 is a deficient number, since it is larger than the sum of its proper divisors (266862875).

986231965 is a wasteful number, since it uses less digits than its factorization.

986231965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11602751.

The product of its digits is 699840, while the sum is 49.

The square root of 986231965 is about 31404.3303542680. The cubic root of 986231965 is about 995.3894303167.

The spelling of 986231965 in words is "nine hundred eighty-six million, two hundred thirty-one thousand, nine hundred sixty-five".