5642663 has 8 divisors (see below), whose sum is σ = 6097056. Its totient is φ = 5191200.

The previous prime is 5642653. The next prime is 5642669. The reversal of 5642663 is 3662465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5642663 - 2⁶ = 5642599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4958 + ... + 5988.

It is an arithmetic number, because the mean of its divisors is an integer number (762132).

Almost surely, 2^5642663 is an apocalyptic number.

5642663 is a deficient number, since it is larger than the sum of its proper divisors (454393).

5642663 is a wasteful number, since it uses less digits than its factorization.

5642663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465.

The product of its digits is 25920, while the sum is 32.

The square root of 5642663 is about 2375.4290138836. The cubic root of 5642663 is about 178.0306200743.

The spelling of 5642663 in words is "five million, six hundred forty-two thousand, six hundred sixty-three".