5660491 has 2 divisors, whose sum is σ = 5660492. Its totient is φ = 5660490.

The previous prime is 5660471. The next prime is 5660503. The reversal of 5660491 is 1940665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5660491 - 2⁷ = 5660363 is a prime.

It is a super-2 number, since 2×5660491² = 64082316722162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5660411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830245 + 2830246.

It is an arithmetic number, because the mean of its divisors is an integer number (2830246).

Almost surely, 2^5660491 is an apocalyptic number.

5660491 is a deficient number, since it is larger than the sum of its proper divisors (1).

5660491 is an equidigital number, since it uses as much as digits as its factorization.

5660491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 5660491 is about 2379.1786397831. The cubic root of 5660491 is about 178.2179189360.

The spelling of 5660491 in words is "five million, six hundred sixty thousand, four hundred ninety-one".