53900784 has 90 divisors (see below), whose sum is σ = 175498440. Its totient is φ = 15398208.

The previous prime is 53900783. The next prime is 53900789. The reversal of 53900784 is 48700935.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53900783) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3237 + ... + 10875.

Almost surely, 2^53900784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53900784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87749220).

53900784 is an abundant number, since it is smaller than the sum of its proper divisors (121597656).

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

53900784 is a wasteful number, since it uses less digits than its factorization.

53900784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7667 (or 7651 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 53900784 is about 7341.7153309019. The cubic root of 53900784 is about 377.7446835549.

The spelling of 53900784 in words is "fifty-three million, nine hundred thousand, seven hundred eighty-four".