2931427969 has 2 divisors, whose sum is σ = 2931427970. Its totient is φ = 2931427968.

The previous prime is 2931427903. The next prime is 2931427981. The reversal of 2931427969 is 9697241392.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2931139600 + 288369 = 54140^2 + 537^2 .

It is a cyclic number.

It is not a de Polignac number, because 2931427969 - 2¹¹ = 2931425921 is a prime.

It is a super-2 number, since 2×2931427969² = 17186539874870929922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2931427999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1465713984 + 1465713985.

It is an arithmetic number, because the mean of its divisors is an integer number (1465713985).

Almost surely, 2^2931427969 is an apocalyptic number.

It is an amenable number.

2931427969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2931427969 is an equidigital number, since it uses as much as digits as its factorization.

2931427969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 52.

The square root of 2931427969 is about 54142.6631132973. The cubic root of 2931427969 is about 1431.1761020712.

The spelling of 2931427969 in words is "two billion, nine hundred thirty-one million, four hundred twenty-seven thousand, nine hundred sixty-nine".