991495652 has 24 divisors (see below), whose sum is σ = 1986292224. Its totient is φ = 424219392.

The previous prime is 991495643. The next prime is 991495667. The reversal of 991495652 is 256594199.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 991495652.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12173 + ... + 46164.

It is an arithmetic number, because the mean of its divisors is an integer number (82762176).

Almost surely, 2^991495652 is an apocalyptic number.

It is an amenable number.

991495652 is an abundant number, since it is smaller than the sum of its proper divisors (994796572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

991495652 is a wasteful number, since it uses less digits than its factorization.

991495652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58955 (or 58953 counting only the distinct ones).

The product of its digits is 874800, while the sum is 50.

The square root of 991495652 is about 31488.0239456210. The cubic root of 991495652 is about 997.1571431568.

The spelling of 991495652 in words is "nine hundred ninety-one million, four hundred ninety-five thousand, six hundred fifty-two".