91520248 has 16 divisors (see below), whose sum is σ = 181694880. Its totient is φ = 43068288.

The previous prime is 91520237. The next prime is 91520263. The reversal of 91520248 is 84202519.

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, 336336 + ... + 336607.

It is an arithmetic number, because the mean of its divisors is an integer number (11355930).

Almost surely, 2^91520248 is an apocalyptic number.

It is an amenable number.

91520248 is a deficient number, since it is larger than the sum of its proper divisors (90174632).

91520248 is a wasteful number, since it uses less digits than its factorization.

91520248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672966 (or 672962 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 91520248 is about 9566.6215562235. The cubic root of 91520248 is about 450.6496755885.

The spelling of 91520248 in words is "ninety-one million, five hundred twenty thousand, two hundred forty-eight".