16920670 has 32 divisors (see below), whose sum is σ = 33268032. Its totient is φ = 6158592.

The previous prime is 16920667. The next prime is 16920671. The reversal of 16920670 is 7602961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16920671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8599 + ... + 10381.

It is an arithmetic number, because the mean of its divisors is an integer number (1039626).

Almost surely, 2^16920670 is an apocalyptic number.

16920670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16920670 is a deficient number, since it is larger than the sum of its proper divisors (16347362).

16920670 is a wasteful number, since it uses less digits than its factorization.

16920670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 16920670 is about 4113.4742007213. The cubic root of 16920670 is about 256.7275749830.

The spelling of 16920670 in words is "sixteen million, nine hundred twenty thousand, six hundred seventy".