91417492 has 6 divisors (see below), whose sum is σ = 159980618. Its totient is φ = 45708744.

The previous prime is 91417477. The next prime is 91417499. The reversal of 91417492 is 29471419.

It can be written as a sum of positive squares in only one way, i.e., 88472836 + 2944656 = 9406^2 + 1716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91417499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11427183 + ... + 11427190.

Almost surely, 2^91417492 is an apocalyptic number.

It is an amenable number.

91417492 is a deficient number, since it is larger than the sum of its proper divisors (68563126).

91417492 is a wasteful number, since it uses less digits than its factorization.

91417492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22854377 (or 22854375 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 91417492 is about 9561.2494999346. The cubic root of 91417492 is about 450.4809540922.

The spelling of 91417492 in words is "ninety-one million, four hundred seventeen thousand, four hundred ninety-two".