91052907 has 16 divisors (see below), whose sum is σ = 133045248. Its totient is φ = 54931680.

The previous prime is 91052903. The next prime is 91052911. The reversal of 91052907 is 70925019.

It is an interprime number because it is at equal distance from previous prime (91052903) and next prime (91052911).

It is not a de Polignac number, because 91052907 - 2² = 91052903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (91052903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1173 + ... + 13545.

It is an arithmetic number, because the mean of its divisors is an integer number (8315328).

Almost surely, 2^91052907 is an apocalyptic number.

91052907 is a deficient number, since it is larger than the sum of its proper divisors (41992341).

91052907 is a wasteful number, since it uses less digits than its factorization.

91052907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12610.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 91052907 is about 9542.1646915152. The cubic root of 91052907 is about 449.8812970859.

The spelling of 91052907 in words is "ninety-one million, fifty-two thousand, nine hundred seven".