91629378 has 24 divisors (see below), whose sum is σ = 207163008. Its totient is φ = 29215032.

The previous prime is 91629361. The next prime is 91629389. The reversal of 91629378 is 87392619.

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 11 ways as a sum of consecutive naturals, for example, 110250 + ... + 111077.

It is an arithmetic number, because the mean of its divisors is an integer number (8631792).

Almost surely, 2^91629378 is an apocalyptic number.

91629378 is an abundant number, since it is smaller than the sum of its proper divisors (115533630).

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

91629378 is a wasteful number, since it uses less digits than its factorization.

91629378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221358 (or 221355 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 91629378 is about 9572.3235423799. The cubic root of 91629378 is about 450.8287247268.

The spelling of 91629378 in words is "ninety-one million, six hundred twenty-nine thousand, three hundred seventy-eight".