16936820 has 12 divisors (see below), whose sum is σ = 35567364. Its totient is φ = 6774720.

The previous prime is 16936817. The next prime is 16936853. The reversal of 16936820 is 2863961.

It can be written as a sum of positive squares in 2 ways, for example, as 13235044 + 3701776 = 3638^2 + 1924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423401 + ... + 423440.

It is an arithmetic number, because the mean of its divisors is an integer number (2963947).

Almost surely, 2^16936820 is an apocalyptic number.

16936820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16936820 is an abundant number, since it is smaller than the sum of its proper divisors (18630544).

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

16936820 is a wasteful number, since it uses less digits than its factorization.

16936820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846850 (or 846848 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 16936820 is about 4115.4367933428. The cubic root of 16936820 is about 256.8092272251.

The spelling of 16936820 in words is "sixteen million, nine hundred thirty-six thousand, eight hundred twenty".