91530416 has 20 divisors (see below), whose sum is σ = 177704400. Its totient is φ = 45671232.

The previous prime is 91530401. The next prime is 91530419. The reversal of 91530416 is 61403519.

It is not an unprimeable number, because it can be changed into a prime (91530419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525 + ... + 13763.

It is an arithmetic number, because the mean of its divisors is an integer number (8885220).

Almost surely, 2^91530416 is an apocalyptic number.

It is an amenable number.

91530416 is a deficient number, since it is larger than the sum of its proper divisors (86173984).

91530416 is a wasteful number, since it uses less digits than its factorization.

91530416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11756 (or 11750 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 91530416 is about 9567.1529725410. The cubic root of 91530416 is about 450.6663641950. Note that the first 3 decimals are identical.

The spelling of 91530416 in words is "ninety-one million, five hundred thirty thousand, four hundred sixteen".