7691994 has 12 divisors (see below), whose sum is σ = 16666026. Its totient is φ = 2563992.

The previous prime is 7691977. The next prime is 7692001. The reversal of 7691994 is 4991967.

It can be written as a sum of positive squares in only one way, i.e., 6066369 + 1625625 = 2463^2 + 1275^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213649 + ... + 213684.

Almost surely, 2^7691994 is an apocalyptic number.

7691994 is an abundant number, since it is smaller than the sum of its proper divisors (8974032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7691994 is a wasteful number, since it uses less digits than its factorization.

7691994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427341 (or 427338 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 7691994 is about 2773.4444288646. Note that the first 4 decimals coincide. The cubic root of 7691994 is about 197.3996199831.

The spelling of 7691994 in words is "seven million, six hundred ninety-one thousand, nine hundred ninety-four".