91677404 has 24 divisors (see below), whose sum is σ = 197459808. Its totient is φ = 36267840.

The previous prime is 91677389. The next prime is 91677407. The reversal of 91677404 is 40477619.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91677407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125567 + ... + 126294.

It is an arithmetic number, because the mean of its divisors is an integer number (8227492).

Almost surely, 2^91677404 is an apocalyptic number.

It is an amenable number.

91677404 is an abundant number, since it is smaller than the sum of its proper divisors (105782404).

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

91677404 is a wasteful number, since it uses less digits than its factorization.

91677404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251885 (or 251883 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 91677404 is about 9574.8318000892. The cubic root of 91677404 is about 450.9074757386.

The spelling of 91677404 in words is "ninety-one million, six hundred seventy-seven thousand, four hundred four".