53686746 has 16 divisors (see below), whose sum is σ = 119304000. Its totient is φ = 17895564.

The previous prime is 53686739. The next prime is 53686757. The reversal of 53686746 is 64768635.

It is a Curzon 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, 497046 + ... + 497153.

It is an arithmetic number, because the mean of its divisors is an integer number (7456500).

Almost surely, 2^53686746 is an apocalyptic number.

53686746 is an abundant number, since it is smaller than the sum of its proper divisors (65617254).

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

53686746 is a wasteful number, since it uses less digits than its factorization.

53686746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994210 (or 994204 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 53686746 is about 7327.1239923997. The cubic root of 53686746 is about 377.2440169164.

The spelling of 53686746 in words is "fifty-three million, six hundred eighty-six thousand, seven hundred forty-six".