2972889761 has 4 divisors (see below), whose sum is σ = 2973316800. Its totient is φ = 2972462724.

The previous prime is 2972889749. The next prime is 2972889769. The reversal of 2972889761 is 1679882792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2972889761 - 2⁶ = 2972889697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2972889761.

It is not an unprimeable number, because it can be changed into a prime (2972889769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202901 + ... + 217058.

It is an arithmetic number, because the mean of its divisors is an integer number (743329200).

Almost surely, 2^2972889761 is an apocalyptic number.

It is an amenable number.

2972889761 is a deficient number, since it is larger than the sum of its proper divisors (427039).

2972889761 is an equidigital number, since it uses as much as digits as its factorization.

2972889761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427038.

The product of its digits is 6096384, while the sum is 59.

The square root of 2972889761 is about 54524.2126123798. The cubic root of 2972889761 is about 1437.8920032468.

The spelling of 2972889761 in words is "two billion, nine hundred seventy-two million, eight hundred eighty-nine thousand, seven hundred sixty-one".