91407004 has 12 divisors (see below), whose sum is σ = 172267144. Its totient is φ = 42187824.

The previous prime is 91406981. The next prime is 91407013. The reversal of 91407004 is 40070419.

It is a self number, because there is not a number n which added to its sum of digits gives 91407004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878862 + ... + 878965.

Almost surely, 2^91407004 is an apocalyptic number.

It is an amenable number.

91407004 is a deficient number, since it is larger than the sum of its proper divisors (80860140).

91407004 is a wasteful number, since it uses less digits than its factorization.

91407004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757844 (or 1757842 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 91407004 is about 9560.7010203227. The cubic root of 91407004 is about 450.4637260802.

The spelling of 91407004 in words is "ninety-one million, four hundred seven thousand, four".