91464075 has 18 divisors (see below), whose sum is σ = 163822724. Its totient is φ = 48780720.

The previous prime is 91464073. The next prime is 91464089. The reversal of 91464075 is 57046419.

91464075 is a `hidden beast` number, since 9 + 1 + 4 + 640 + 7 + 5 = 666.

It is not a de Polignac number, because 91464075 - 2¹ = 91464073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91464073) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 203029 + ... + 203478.

Almost surely, 2^91464075 is an apocalyptic number.

91464075 is a deficient number, since it is larger than the sum of its proper divisors (72358649).

91464075 is a wasteful number, since it uses less digits than its factorization.

91464075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406523 (or 406515 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 91464075 is about 9563.6852206668. The cubic root of 91464075 is about 450.5574572883.

It can be divided in two parts, 91 and 464075, that added together give a triangular number (464166 = T₉₆₃).

The spelling of 91464075 in words is "ninety-one million, four hundred sixty-four thousand, seventy-five".