7764131 has 2 divisors, whose sum is σ = 7764132. Its totient is φ = 7764130.

The previous prime is 7764101. The next prime is 7764139. The reversal of 7764131 is 1314677.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7764131 - 2¹⁸ = 7501987 is a prime.

It is a super-2 number, since 2×7764131² = 120563460370322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7764094 and 7764103.

It is not a weakly prime, because it can be changed into another prime (7764139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3882065 + 3882066.

It is an arithmetic number, because the mean of its divisors is an integer number (3882066).

Almost surely, 2^7764131 is an apocalyptic number.

7764131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7764131 is an equidigital number, since it uses as much as digits as its factorization.

7764131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 29.

The square root of 7764131 is about 2786.4190280717. The cubic root of 7764131 is about 198.0147848022.

The spelling of 7764131 in words is "seven million, seven hundred sixty-four thousand, one hundred thirty-one".