53976989 has 8 divisors (see below), whose sum is σ = 62347968. Its totient is φ = 46183360.

The previous prime is 53976977. The next prime is 53976991. The reversal of 53976989 is 98967935.

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 53976989 - 2¹⁶ = 53911453 is a prime.

It is a super-2 number, since 2×53976989² = 5827030683012242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53976089) 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, 144137 + ... + 144510.

It is an arithmetic number, because the mean of its divisors is an integer number (7793496).

Almost surely, 2^53976989 is an apocalyptic number.

It is an amenable number.

53976989 is a deficient number, since it is larger than the sum of its proper divisors (8370979).

53976989 is a wasteful number, since it uses less digits than its factorization.

53976989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288675.

The product of its digits is 3674160, while the sum is 56.

The square root of 53976989 is about 7346.9033612809. The cubic root of 53976989 is about 377.9226183715.

The spelling of 53976989 in words is "fifty-three million, nine hundred seventy-six thousand, nine hundred eighty-nine".