91377629 has 16 divisors (see below), whose sum is σ = 106060416. Its totient is φ = 77112000.

The previous prime is 91377613. The next prime is 91377653. The reversal of 91377629 is 92677319.

It is a happy number.

It is not a de Polignac number, because 91377629 - 2⁴ = 91377613 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 91377629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91377659) 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, 216839 + ... + 217259.

It is an arithmetic number, because the mean of its divisors is an integer number (6628776).

Almost surely, 2^91377629 is an apocalyptic number.

It is an amenable number.

91377629 is a deficient number, since it is larger than the sum of its proper divisors (14682787).

91377629 is a wasteful number, since it uses less digits than its factorization.

91377629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its digits is 142884, while the sum is 44.

The square root of 91377629 is about 9559.1646601573. The cubic root of 91377629 is about 450.4154665046.

The spelling of 91377629 in words is "ninety-one million, three hundred seventy-seven thousand, six hundred twenty-nine".