2072689931 has 16 divisors (see below), whose sum is σ = 2245689600. Its totient is φ = 1901670048.

The previous prime is 2072689897. The next prime is 2072689937. The reversal of 2072689931 is 1399862702.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2072689931 is a prime.

It is a super-2 number, since 2×2072689931² = 8592087100137569522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2072689937) 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, 2470010 + ... + 2470848.

It is an arithmetic number, because the mean of its divisors is an integer number (140355600).

Almost surely, 2^2072689931 is an apocalyptic number.

2072689931 is a deficient number, since it is larger than the sum of its proper divisors (172999669).

2072689931 is a wasteful number, since it uses less digits than its factorization.

2072689931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 2072689931 is about 45526.8045331539. The cubic root of 2072689931 is about 1275.0037023601.

The spelling of 2072689931 in words is "two billion, seventy-two million, six hundred eighty-nine thousand, nine hundred thirty-one".