53998879 has 8 divisors (see below), whose sum is σ = 58988160. Its totient is φ = 49023000.

The previous prime is 53998853. The next prime is 53998913. The reversal of 53998879 is 97889935.

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 53998879 - 2¹³ = 53990687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53998279) 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, 6304 + ... + 12154.

It is an arithmetic number, because the mean of its divisors is an integer number (7373520).

Almost surely, 2^53998879 is an apocalyptic number.

53998879 is a deficient number, since it is larger than the sum of its proper divisors (4989281).

53998879 is a wasteful number, since it uses less digits than its factorization.

53998879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6701.

The product of its digits is 4898880, while the sum is 58.

The square root of 53998879 is about 7348.3929535647. The cubic root of 53998879 is about 377.9736994476.

The spelling of 53998879 in words is "fifty-three million, nine hundred ninety-eight thousand, eight hundred seventy-nine".