53406684 has 18 divisors (see below), whose sum is σ = 135000320. Its totient is φ = 17802216.

The previous prime is 53406677. The next prime is 53406721. The reversal of 53406684 is 48660435.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1483519 = 53406684 / (5 + 3 + 4 + 0 + 6 + 6 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 741724 + ... + 741795.

Almost surely, 2^53406684 is an apocalyptic number.

It is an amenable number.

53406684 is an abundant number, since it is smaller than the sum of its proper divisors (81593636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53406684 is a wasteful number, since it uses less digits than its factorization.

53406684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483529 (or 1483524 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 53406684 is about 7307.9876847187. The cubic root of 53406684 is about 376.5868965524.

The spelling of 53406684 in words is "fifty-three million, four hundred six thousand, six hundred eighty-four".