91631002 has 8 divisors (see below), whose sum is σ = 137491200. Its totient is φ = 45800604.

The previous prime is 91630999. The next prime is 91631017. The reversal of 91631002 is 20013619.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3399 + ... + 13957.

It is an arithmetic number, because the mean of its divisors is an integer number (17186400).

Almost surely, 2^91631002 is an apocalyptic number.

91631002 is a deficient number, since it is larger than the sum of its proper divisors (45860198).

91631002 is a wasteful number, since it uses less digits than its factorization.

91631002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14900.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 91631002 is about 9572.4083698931. The cubic root of 91631002 is about 450.8313881431.

The spelling of 91631002 in words is "ninety-one million, six hundred thirty-one thousand, two".