91260039 has 8 divisors (see below), whose sum is σ = 131040112. Its totient is φ = 56160000.

The previous prime is 91260023. The next prime is 91260049. The reversal of 91260039 is 93006219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91260039 - 2⁴ = 91260023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91259988 and 91260015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91260049) 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 7 ways as a sum of consecutive naturals, for example, 1169962 + ... + 1170039.

It is an arithmetic number, because the mean of its divisors is an integer number (16380014).

Almost surely, 2^91260039 is an apocalyptic number.

91260039 is a deficient number, since it is larger than the sum of its proper divisors (39780073).

91260039 is a wasteful number, since it uses less digits than its factorization.

91260039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340017.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 91260039 is about 9553.0120380956. The cubic root of 91260039 is about 450.2221767073. Note that the first 3 decimals are identical.

The spelling of 91260039 in words is "ninety-one million, two hundred sixty thousand, thirty-nine".