91914290 has 64 divisors (see below), whose sum is σ = 185812704. Its totient is φ = 32514048.

The previous prime is 91914289. The next prime is 91914293. The reversal of 91914290 is 9241919.

It can be written as a sum of positive squares in 16 ways, for example, as 33651601 + 58262689 = 5801^2 + 7633^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 91914290.

It is not an unprimeable number, because it can be changed into a prime (91914293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 466472 + ... + 466668.

Almost surely, 2^91914290 is an apocalyptic number.

91914290 is an abundant number, since it is smaller than the sum of its proper divisors (93898414).

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

91914290 is a wasteful number, since it uses less digits than its factorization.

91914290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 91914290 is about 9587.1940629154. The cubic root of 91914290 is about 451.2955095636.

The spelling of 91914290 in words is "ninety-one million, nine hundred fourteen thousand, two hundred ninety".