53870838 has 16 divisors (see below), whose sum is σ = 123133440. Its totient is φ = 15391656.

The previous prime is 53870827. The next prime is 53870851. The reversal of 53870838 is 83807835.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1282639 = 53870838 / (5 + 3 + 8 + 7 + 0 + 8 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 53870838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641278 + ... + 641361.

It is an arithmetic number, because the mean of its divisors is an integer number (7695840).

Almost surely, 2^53870838 is an apocalyptic number.

53870838 is an abundant number, since it is smaller than the sum of its proper divisors (69262602).

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

53870838 is a wasteful number, since it uses less digits than its factorization.

53870838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282651.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 53870838 is about 7339.6756059107. The cubic root of 53870838 is about 377.6747152602.

The spelling of 53870838 in words is "fifty-three million, eight hundred seventy thousand, eight hundred thirty-eight".