7964215 has 12 divisors (see below), whose sum is σ = 11117736. Its totient is φ = 5461008.

The previous prime is 7964207. The next prime is 7964237. The reversal of 7964215 is 5124697.

It is not a de Polignac number, because 7964215 - 2³ = 7964207 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 16009 + ... + 16498.

It is an arithmetic number, because the mean of its divisors is an integer number (926478).

Almost surely, 2^7964215 is an apocalyptic number.

7964215 is a deficient number, since it is larger than the sum of its proper divisors (3153521).

7964215 is a wasteful number, since it uses less digits than its factorization.

7964215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32526 (or 32519 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 7964215 is about 2822.0940806430. The cubic root of 7964215 is about 199.7013459173.

The spelling of 7964215 in words is "seven million, nine hundred sixty-four thousand, two hundred fifteen".