91311654 has 32 divisors (see below), whose sum is σ = 208995840. Its totient is φ = 26053632.

The previous prime is 91311643. The next prime is 91311673. The reversal of 91311654 is 45611319.

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 in 15 ways as a sum of consecutive naturals, for example, 58407 + ... + 59949.

It is an arithmetic number, because the mean of its divisors is an integer number (6531120).

Almost surely, 2^91311654 is an apocalyptic number.

91311654 is an abundant number, since it is smaller than the sum of its proper divisors (117684186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91311654 is a wasteful number, since it uses less digits than its factorization.

91311654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964.

The product of its digits is 3240, while the sum is 30.

The square root of 91311654 is about 9555.7131601990. The cubic root of 91311654 is about 450.3070398385.

The spelling of 91311654 in words is "ninety-one million, three hundred eleven thousand, six hundred fifty-four".