7966491 has 24 divisors (see below), whose sum is σ = 12121920. Its totient is φ = 4638816.

The previous prime is 7966463. The next prime is 7966493. The reversal of 7966491 is 1946697.

It is not a de Polignac number, because 7966491 - 2⁷ = 7966363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7966493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9220 + ... + 10046.

It is an arithmetic number, because the mean of its divisors is an integer number (505080).

Almost surely, 2^7966491 is an apocalyptic number.

7966491 is a deficient number, since it is larger than the sum of its proper divisors (4155429).

7966491 is a wasteful number, since it uses less digits than its factorization.

7966491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 862 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 7966491 is about 2822.4972984929. The cubic root of 7966491 is about 199.7203675440.

The spelling of 7966491 in words is "seven million, nine hundred sixty-six thousand, four hundred ninety-one".