16870730 has 16 divisors (see below), whose sum is σ = 31688064. Its totient is φ = 6454800.

The previous prime is 16870717. The next prime is 16870741. The reversal of 16870730 is 3707861.

It is a happy 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, 36446 + ... + 36905.

It is an arithmetic number, because the mean of its divisors is an integer number (1980504).

Almost surely, 2^16870730 is an apocalyptic number.

16870730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16870730 is a deficient number, since it is larger than the sum of its proper divisors (14817334).

16870730 is a wasteful number, since it uses less digits than its factorization.

16870730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73381.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 16870730 is about 4107.3994205580. The cubic root of 16870730 is about 256.4747558141.

The spelling of 16870730 in words is "sixteen million, eight hundred seventy thousand, seven hundred thirty".