91492449 has 16 divisors (see below), whose sum is σ = 123275520. Its totient is φ = 60356240.

The previous prime is 91492403. The next prime is 91492481. The reversal of 91492449 is 94429419.

It is a cyclic number.

It is not a de Polignac number, because 91492449 - 2⁹ = 91491937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91492449.

It is not an unprimeable number, because it can be changed into a prime (91492649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186094 + ... + 186584.

It is an arithmetic number, because the mean of its divisors is an integer number (7704720).

Almost surely, 2^91492449 is an apocalyptic number.

It is an amenable number.

91492449 is a deficient number, since it is larger than the sum of its proper divisors (31783071).

91492449 is a wasteful number, since it uses less digits than its factorization.

91492449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020.

The product of its digits is 93312, while the sum is 42.

The square root of 91492449 is about 9565.1685296183. The cubic root of 91492449 is about 450.6040431402.

The spelling of 91492449 in words is "ninety-one million, four hundred ninety-two thousand, four hundred forty-nine".