7906491 has 12 divisors (see below), whose sum is σ = 11843832. Its totient is φ = 5270832.

The previous prime is 7906471. The next prime is 7906501. The reversal of 7906491 is 1946097.

7906491 is a `hidden beast` number, since 7 + 9 + 0 + 649 + 1 = 666.

It is not a de Polignac number, because 7906491 - 2⁶ = 7906427 is a prime.

It is a super-5 number, since 5×7906491⁵ (a number of 36 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (7906471) by changing a digit.

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, 16026 + ... + 16511.

It is an arithmetic number, because the mean of its divisors is an integer number (986986).

Almost surely, 2^7906491 is an apocalyptic number.

7906491 is a deficient number, since it is larger than the sum of its proper divisors (3937341).

7906491 is an equidigital number, since it uses as much as digits as its factorization.

7906491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32552 (or 32540 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 7906491 is about 2811.8483245012. The cubic root of 7906491 is about 199.2177023751.

The spelling of 7906491 in words is "seven million, nine hundred six thousand, four hundred ninety-one".