91204002 has 32 divisors (see below), whose sum is σ = 202988160. Its totient is φ = 30354480.

The previous prime is 91203991. The next prime is 91204013. The reversal of 91204002 is 20040219.

It is an interprime number because it is at equal distance from previous prime (91203991) and next prime (91204013).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65352 + ... + 66732.

It is an arithmetic number, because the mean of its divisors is an integer number (6343380).

Almost surely, 2^91204002 is an apocalyptic number.

91204002 is an abundant number, since it is smaller than the sum of its proper divisors (111784158).

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

91204002 is a wasteful number, since it uses less digits than its factorization.

91204002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615 (or 2609 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 91204002 is about 9550.0786384197. The cubic root of 91204002 is about 450.1300068813.

The spelling of 91204002 in words is "ninety-one million, two hundred four thousand, two".