2997307691 has 16 divisors (see below), whose sum is σ = 3467755200. Its totient is φ = 2537619840.

The previous prime is 2997307681. The next prime is 2997307699. The reversal of 2997307691 is 1967037992.

It is a happy number.

2997307691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2997307691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2997307699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180845 + ... + 196721.

It is an arithmetic number, because the mean of its divisors is an integer number (216734700).

Almost surely, 2^2997307691 is an apocalyptic number.

2997307691 is a deficient number, since it is larger than the sum of its proper divisors (470447509).

2997307691 is a wasteful number, since it uses less digits than its factorization.

2997307691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16214.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 2997307691 is about 54747.6729277145. The cubic root of 2997307691 is about 1441.8179987903.

The spelling of 2997307691 in words is "two billion, nine hundred ninety-seven million, three hundred seven thousand, six hundred ninety-one".