13693820 has 24 divisors (see below), whose sum is σ = 32865504. Its totient is φ = 4694976.

The previous prime is 13693819. The next prime is 13693831. The reversal of 13693820 is 2839631.

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, 48767 + ... + 49046.

It is an arithmetic number, because the mean of its divisors is an integer number (1369396).

Almost surely, 2^13693820 is an apocalyptic number.

13693820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13693820 is an abundant number, since it is smaller than the sum of its proper divisors (19171684).

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

13693820 is a wasteful number, since it uses less digits than its factorization.

13693820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97829 (or 97827 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 13693820 is about 3700.5161802105. The cubic root of 13693820 is about 239.2442662937.

The spelling of 13693820 in words is "thirteen million, six hundred ninety-three thousand, eight hundred twenty".