92641991 has 8 divisors (see below), whose sum is σ = 100702224. Its totient is φ = 84715200.

The previous prime is 92641963. The next prime is 92642009. The reversal of 92641991 is 19914629.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 92641991 - 2¹⁴ = 92625607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92641931) 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, 31910 + ... + 34691.

It is an arithmetic number, because the mean of its divisors is an integer number (12587778).

Almost surely, 2^92641991 is an apocalyptic number.

92641991 is a deficient number, since it is larger than the sum of its proper divisors (8060233).

92641991 is a wasteful number, since it uses less digits than its factorization.

92641991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66721.

The product of its digits is 34992, while the sum is 41.

The square root of 92641991 is about 9625.0709607774. The cubic root of 92641991 is about 452.4833745405.

The spelling of 92641991 in words is "ninety-two million, six hundred forty-one thousand, nine hundred ninety-one".