91314490 has 16 divisors (see below), whose sum is σ = 164592648. Its totient is φ = 36475456.

The previous prime is 91314481. The next prime is 91314493. The reversal of 91314490 is 9441319.

It can be written as a sum of positive squares in 4 ways, for example, as 45846441 + 45468049 = 6771^2 + 6743^2 .

It is not an unprimeable number, because it can be changed into a prime (91314493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1824 + ... + 13636.

Almost surely, 2^91314490 is an apocalyptic number.

91314490 is a deficient number, since it is larger than the sum of its proper divisors (73278158).

91314490 is a wasteful number, since it uses less digits than its factorization.

91314490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12593.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 91314490 is about 9555.8615519481. The cubic root of 91314490 is about 450.3117017390.

The spelling of 91314490 in words is "ninety-one million, three hundred fourteen thousand, four hundred ninety".