91961252 has 24 divisors (see below), whose sum is σ = 168618240. Its totient is φ = 43829280.

The previous prime is 91961251. The next prime is 91961267. The reversal of 91961252 is 25216919.

It is a super-3 number, since 3×91961252³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (91961251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2774 + ... + 13842.

It is an arithmetic number, because the mean of its divisors is an integer number (7025760).

Almost surely, 2^91961252 is an apocalyptic number.

It is an amenable number.

91961252 is a deficient number, since it is larger than the sum of its proper divisors (76656988).

91961252 is a wasteful number, since it uses less digits than its factorization.

91961252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11171 (or 11169 counting only the distinct ones).

The product of its digits is 9720, while the sum is 35.

The square root of 91961252 is about 9589.6429547716. The cubic root of 91961252 is about 451.3723569948.

The spelling of 91961252 in words is "ninety-one million, nine hundred sixty-one thousand, two hundred fifty-two".