2972691623 has 8 divisors (see below), whose sum is σ = 3266609040. Its totient is φ = 2682719680.

The previous prime is 2972691611. The next prime is 2972691647. The reversal of 2972691623 is 3261962792.

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 2972691623 - 2¹⁰ = 2972690599 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 (2972691653) 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, 984788 + ... + 987801.

It is an arithmetic number, because the mean of its divisors is an integer number (408326130).

Almost surely, 2^2972691623 is an apocalyptic number.

2972691623 is a deficient number, since it is larger than the sum of its proper divisors (293917417).

2972691623 is a wasteful number, since it uses less digits than its factorization.

2972691623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972737.

The product of its digits is 489888, while the sum is 47.

The square root of 2972691623 is about 54522.3956095108. The cubic root of 2972691623 is about 1437.8600581924.

It can be divided in two parts, 297269 and 1623, that added together give a palindrome (298892).

The spelling of 2972691623 in words is "two billion, nine hundred seventy-two million, six hundred ninety-one thousand, six hundred twenty-three".