91396775 has 12 divisors (see below), whose sum is σ = 113497200. Its totient is φ = 73010880.

The previous prime is 91396769. The next prime is 91396787. The reversal of 91396775 is 57769319.

It is a happy number.

It is not a de Polignac number, because 91396775 - 2¹⁴ = 91380391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17966 + ... + 22484.

It is an arithmetic number, because the mean of its divisors is an integer number (9458100).

Almost surely, 2^91396775 is an apocalyptic number.

91396775 is a deficient number, since it is larger than the sum of its proper divisors (22100425).

91396775 is a wasteful number, since it uses less digits than its factorization.

91396775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5338 (or 5333 counting only the distinct ones).

The product of its digits is 357210, while the sum is 47.

The square root of 91396775 is about 9560.1660550432. The cubic root of 91396775 is about 450.4469222427.

The spelling of 91396775 in words is "ninety-one million, three hundred ninety-six thousand, seven hundred seventy-five".