91400486 has 4 divisors (see below), whose sum is σ = 137100732. Its totient is φ = 45700242.

The previous prime is 91400479. The next prime is 91400497. The reversal of 91400486 is 68400419.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22850120 + ... + 22850123.

It is an arithmetic number, because the mean of its divisors is an integer number (34275183).

Almost surely, 2^91400486 is an apocalyptic number.

91400486 is a deficient number, since it is larger than the sum of its proper divisors (45700246).

91400486 is a wasteful number, since it uses less digits than its factorization.

91400486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45700245.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 91400486 is about 9560.3601396600. The cubic root of 91400486 is about 450.4530186865.

The spelling of 91400486 in words is "ninety-one million, four hundred thousand, four hundred eighty-six".