5898523721 has 4 divisors (see below), whose sum is σ = 5937586944. Its totient is φ = 5859460500.

The previous prime is 5898523699. The next prime is 5898523727. The reversal of 5898523721 is 1273258985.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5898523721 - 2²² = 5894329417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5898523721.

It is not an unprimeable number, because it can be changed into a prime (5898523727) 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, 19531385 + ... + 19531686.

It is an arithmetic number, because the mean of its divisors is an integer number (1484396736).

Almost surely, 2^5898523721 is an apocalyptic number.

It is an amenable number.

5898523721 is a deficient number, since it is larger than the sum of its proper divisors (39063223).

5898523721 is a wasteful number, since it uses less digits than its factorization.

5898523721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39063222.

The product of its digits is 1209600, while the sum is 50.

The square root of 5898523721 is about 76801.8471197145. The cubic root of 5898523721 is about 1806.8181454388.

The spelling of 5898523721 in words is "five billion, eight hundred ninety-eight million, five hundred twenty-three thousand, seven hundred twenty-one".