7920916 has 6 divisors (see below), whose sum is σ = 13861610. Its totient is φ = 3960456.

The previous prime is 7920893. The next prime is 7920949. The reversal of 7920916 is 6190297.

It can be written as a sum of positive squares in only one way, i.e., 7584516 + 336400 = 2754^2 + 580^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990111 + ... + 990118.

Almost surely, 2^7920916 is an apocalyptic number.

It is an amenable number.

7920916 is a deficient number, since it is larger than the sum of its proper divisors (5940694).

7920916 is a wasteful number, since it uses less digits than its factorization.

7920916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980233 (or 1980231 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 7920916 is about 2814.4121944022. The cubic root of 7920916 is about 199.3387830364.

It can be divided in two parts, 7920 and 916, that added together give a square (8836 = 94²).

The spelling of 7920916 in words is "seven million, nine hundred twenty thousand, nine hundred sixteen".