5642487 has 32 divisors (see below), whose sum is σ = 9331200. Its totient is φ = 3348864.

The previous prime is 5642479. The next prime is 5642489. The reversal of 5642487 is 7842465.

5642487 is a `hidden beast` number, since 5 + 642 + 4 + 8 + 7 = 666.

It is not a de Polignac number, because 5642487 - 2³ = 5642479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642489) 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 31 ways as a sum of consecutive naturals, for example, 8398 + ... + 9044.

It is an arithmetic number, because the mean of its divisors is an integer number (291600).

Almost surely, 2^5642487 is an apocalyptic number.

5642487 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

5642487 is a deficient number, since it is larger than the sum of its proper divisors (3688713).

5642487 is a wasteful number, since it uses less digits than its factorization.

5642487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 686 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 5642487 is about 2375.3919676550. The cubic root of 5642487 is about 178.0287690738.

The spelling of 5642487 in words is "five million, six hundred forty-two thousand, four hundred eighty-seven".