5642479 has 2 divisors, whose sum is σ = 5642480. Its totient is φ = 5642478.

The previous prime is 5642477. The next prime is 5642489. The reversal of 5642479 is 9742465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5642479 - 2¹ = 5642477 is a prime.

Together with 5642477, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 5⁵ + 6 + 4 + 2¹⁵ + 4³ + 7⁷ + 9⁷ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5642477) 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 as a sum of consecutive naturals, namely, 2821239 + 2821240.

It is an arithmetic number, because the mean of its divisors is an integer number (2821240).

Almost surely, 2^5642479 is an apocalyptic number.

5642479 is a deficient number, since it is larger than the sum of its proper divisors (1).

5642479 is an equidigital number, since it uses as much as digits as its factorization.

5642479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 5642479 is about 2375.3902837218. The cubic root of 5642479 is about 178.0286849365.

The spelling of 5642479 in words is "five million, six hundred forty-two thousand, four hundred seventy-nine".