991600532 has 48 divisors (see below), whose sum is σ = 1911555072. Its totient is φ = 447258240.

The previous prime is 991600529. The next prime is 991600553. The reversal of 991600532 is 235006199.

It is a junction number, because it is equal to n+sod(n) for n = 991600492 and 991600501.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 911693 + ... + 912779.

It is an arithmetic number, because the mean of its divisors is an integer number (39824064).

Almost surely, 2^991600532 is an apocalyptic number.

It is an amenable number.

991600532 is a deficient number, since it is larger than the sum of its proper divisors (919954540).

991600532 is a wasteful number, since it uses less digits than its factorization.

991600532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 991600532 is about 31489.6892966571. The cubic root of 991600532 is about 997.1923015405.

The spelling of 991600532 in words is "nine hundred ninety-one million, six hundred thousand, five hundred thirty-two".