91499448 has 16 divisors (see below), whose sum is σ = 228748680. Its totient is φ = 30499808.

The previous prime is 91499411. The next prime is 91499479. The reversal of 91499448 is 84499419.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 91499397 and 91499406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1906215 + ... + 1906262.

Almost surely, 2^91499448 is an apocalyptic number.

It is an amenable number.

91499448 is an abundant number, since it is smaller than the sum of its proper divisors (137249232).

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

91499448 is a wasteful number, since it uses less digits than its factorization.

91499448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812486 (or 3812482 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 91499448 is about 9565.5343813088. The cubic root of 91499448 is about 450.6155329673.

The spelling of 91499448 in words is "ninety-one million, four hundred ninety-nine thousand, four hundred forty-eight".