7664002 has 4 divisors (see below), whose sum is σ = 11496006. Its totient is φ = 3832000.

The previous prime is 7663993. The next prime is 7664009. The reversal of 7664002 is 2004667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2004667 = 7 ⋅286381.

It can be written as a sum of positive squares in only one way, i.e., 4456321 + 3207681 = 2111^2 + 1791^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7664009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1915999 + ... + 1916002.

Almost surely, 2^7664002 is an apocalyptic number.

7664002 is a deficient number, since it is larger than the sum of its proper divisors (3832004).

7664002 is a wasteful number, since it uses less digits than its factorization.

7664002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832003.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 7664002 is about 2768.3933969001. The cubic root of 7664002 is about 197.1598760575.

Adding to 7664002 its reverse (2004667), we get a palindrome (9668669).

The spelling of 7664002 in words is "seven million, six hundred sixty-four thousand, two".