53698736 has 60 divisors (see below), whose sum is σ = 128799792. Its totient is φ = 21235968.

The previous prime is 53698709. The next prime is 53698751. The reversal of 53698736 is 63789635.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17510 + ... + 20346.

Almost surely, 2^53698736 is an apocalyptic number.

53698736 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53698736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64399896).

53698736 is an abundant number, since it is smaller than the sum of its proper divisors (75101056).

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

53698736 is a wasteful number, since it uses less digits than its factorization.

53698736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878 (or 2859 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 53698736 is about 7327.9421395096. The cubic root of 53698736 is about 377.2720984537.

The spelling of 53698736 in words is "fifty-three million, six hundred ninety-eight thousand, seven hundred thirty-six".