91244952 has 24 divisors (see below), whose sum is σ = 247121940. Its totient is φ = 30414960.

The previous prime is 91244947. The next prime is 91244953. The reversal of 91244952 is 25944219.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91244953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 633574 + ... + 633717.

Almost surely, 2^91244952 is an apocalyptic number.

It is an amenable number.

91244952 is an abundant number, since it is smaller than the sum of its proper divisors (155876988).

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

91244952 is a wasteful number, since it uses less digits than its factorization.

91244952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267303 (or 1267296 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 91244952 is about 9552.2223592209. Note that the first 3 decimals coincide. The cubic root of 91244952 is about 450.1973652769.

The spelling of 91244952 in words is "ninety-one million, two hundred forty-four thousand, nine hundred fifty-two".