7664331 has 16 divisors (see below), whose sum is σ = 10986624. Its totient is φ = 4735104.

The previous prime is 7664329. The next prime is 7664341. The reversal of 7664331 is 1334667.

It is not a de Polignac number, because 7664331 - 2¹ = 7664329 is a prime.

It is a super-2 number, since 2×7664331² = 117483939355122, which contains 22 as substring.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (7664311) 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, 2296 + ... + 4538.

It is an arithmetic number, because the mean of its divisors is an integer number (686664).

Almost surely, 2^7664331 is an apocalyptic number.

7664331 is a deficient number, since it is larger than the sum of its proper divisors (3322293).

7664331 is a wasteful number, since it uses less digits than its factorization.

7664331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330.

The product of its digits is 9072, while the sum is 30.

The square root of 7664331 is about 2768.4528170081. The cubic root of 7664331 is about 197.1626972411.

Adding to 7664331 its product of digits (9072), we get a triangular number (7673403 = T₃₉₁₇).

Adding to 7664331 its reverse (1334667), we get a palindrome (8998998).

The spelling of 7664331 in words is "seven million, six hundred sixty-four thousand, three hundred thirty-one".