7946991 has 20 divisors (see below), whose sum is σ = 12786312. Its totient is φ = 4889808.

The previous prime is 7946969. The next prime is 7947011. The reversal of 7946991 is 1996497.

It is not a de Polignac number, because 7946991 - 2⁶ = 7946927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7946941) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2721 + ... + 4826.

Almost surely, 2^7946991 is an apocalyptic number.

7946991 is a deficient number, since it is larger than the sum of its proper divisors (4839321).

7946991 is a wasteful number, since it uses less digits than its factorization.

7946991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7572 (or 7563 counting only the distinct ones).

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

The square root of 7946991 is about 2819.0407943128. The cubic root of 7946991 is about 199.5572790472.

The spelling of 7946991 in words is "seven million, nine hundred forty-six thousand, nine hundred ninety-one".