7664744 has 16 divisors (see below), whose sum is σ = 14422020. Its totient is φ = 3818880.

The previous prime is 7664737. The next prime is 7664753. The reversal of 7664744 is 4474667.

It can be written as a sum of positive squares in 2 ways, for example, as 7628644 + 36100 = 2762^2 + 190^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7664698 and 7664707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 974 + ... + 4034.

Almost surely, 2^7664744 is an apocalyptic number.

It is an amenable number.

7664744 is a deficient number, since it is larger than the sum of its proper divisors (6757276).

7664744 is a wasteful number, since it uses less digits than its factorization.

7664744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380 (or 3376 counting only the distinct ones).

The product of its digits is 112896, while the sum is 38.

The square root of 7664744 is about 2768.5274064022. The cubic root of 7664744 is about 197.1662386127.

The spelling of 7664744 in words is "seven million, six hundred sixty-four thousand, seven hundred forty-four".