7964289 has 6 divisors (see below), whose sum is σ = 11503986. Its totient is φ = 5309520.

The previous prime is 7964273. The next prime is 7964311. The reversal of 7964289 is 9824697.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6051600 + 1912689 = 2460^2 + 1383^2 .

It is not a de Polignac number, because 7964289 - 2⁴ = 7964273 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7964689) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 442452 + ... + 442469.

It is an arithmetic number, because the mean of its divisors is an integer number (1917331).

Almost surely, 2^7964289 is an apocalyptic number.

It is an amenable number.

7964289 is a deficient number, since it is larger than the sum of its proper divisors (3539697).

7964289 is a wasteful number, since it uses less digits than its factorization.

7964289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884927 (or 884924 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 7964289 is about 2822.1071914440. The cubic root of 7964289 is about 199.7019644279.

The spelling of 7964289 in words is "seven million, nine hundred sixty-four thousand, two hundred eighty-nine".