5642003897 has 4 divisors (see below), whose sum is σ = 5666218740. Its totient is φ = 5617789056.

The previous prime is 5642003881. The next prime is 5642003903. The reversal of 5642003897 is 7983002465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2340237376 + 3301766521 = 48376^2 + 57461^2 .

It is a cyclic number.

It is not a de Polignac number, because 5642003897 - 2⁴ = 5642003881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5642003837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12107072 + ... + 12107537.

It is an arithmetic number, because the mean of its divisors is an integer number (1416554685).

Almost surely, 2^5642003897 is an apocalyptic number.

It is an amenable number.

5642003897 is a deficient number, since it is larger than the sum of its proper divisors (24214843).

5642003897 is a wasteful number, since it uses less digits than its factorization.

5642003897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24214842.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 5642003897 is about 75113.2737736813. The cubic root of 5642003897 is about 1780.2368805860.

The spelling of 5642003897 in words is "five billion, six hundred forty-two million, three thousand, eight hundred ninety-seven".