53998969 has 8 divisors (see below), whose sum is σ = 57774080. Its totient is φ = 50317200.

The previous prime is 53998951. The next prime is 53998991. The reversal of 53998969 is 96989935.

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 53998969 - 2⁵ = 53998937 is a prime.

It is a super-2 number, since 2×53998969² = 5831777306125922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53998999) 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, 22137 + ... + 24454.

It is an arithmetic number, because the mean of its divisors is an integer number (7221760).

Almost surely, 2^53998969 is an apocalyptic number.

It is an amenable number.

53998969 is a deficient number, since it is larger than the sum of its proper divisors (3775111).

53998969 is a wasteful number, since it uses less digits than its factorization.

53998969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46671.

The product of its digits is 4723920, while the sum is 58.

The square root of 53998969 is about 7348.3990773501. The cubic root of 53998969 is about 377.9739094372.

The spelling of 53998969 in words is "fifty-three million, nine hundred ninety-eight thousand, nine hundred sixty-nine".