966985531 has 8 divisors (see below), whose sum is σ = 978660144. Its totient is φ = 955345920.

The previous prime is 966985529. The next prime is 966985549. The reversal of 966985531 is 135589669.

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 966985531 - 2¹ = 966985529 is a prime.

It is a super-2 number, since 2×966985531² = 1870122034326703922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (966985631) 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, 49116 + ... + 65926.

It is an arithmetic number, because the mean of its divisors is an integer number (122332518).

Almost surely, 2^966985531 is an apocalyptic number.

966985531 is a deficient number, since it is larger than the sum of its proper divisors (11674613).

966985531 is a wasteful number, since it uses less digits than its factorization.

966985531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17501.

The product of its digits is 1749600, while the sum is 52.

The square root of 966985531 is about 31096.3909642261. The cubic root of 966985531 is about 988.8717995144.

The spelling of 966985531 in words is "nine hundred sixty-six million, nine hundred eighty-five thousand, five hundred thirty-one".