9090376691 has 8 divisors (see below), whose sum is σ = 9918015168. Its totient is φ = 8262945000.

The previous prime is 9090376651. The next prime is 9090376723. The reversal of 9090376691 is 1966730909.

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 9090376691 - 2¹⁰ = 9090375667 is a prime.

It is a super-2 number, since 2×9090376691² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9090376651) 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, 48716 + ... + 143366.

It is an arithmetic number, because the mean of its divisors is an integer number (1239751896).

Almost surely, 2^9090376691 is an apocalyptic number.

9090376691 is a deficient number, since it is larger than the sum of its proper divisors (827638477).

9090376691 is a wasteful number, since it uses less digits than its factorization.

9090376691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103393.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 9090376691 is about 95343.4669550043. The cubic root of 9090376691 is about 2087.0232793623.

The spelling of 9090376691 in words is "nine billion, ninety million, three hundred seventy-six thousand, six hundred ninety-one".