16980730 has 16 divisors (see below), whose sum is σ = 32916744. Its totient is φ = 6269760.

The previous prime is 16980709. The next prime is 16980751. The reversal of 16980730 is 3708961.

It is an interprime number because it is at equal distance from previous prime (16980709) and next prime (16980751).

It can be written as a sum of positive squares in 4 ways, for example, as 4498641 + 12482089 = 2121^2 + 3533^2 .

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, 65181 + ... + 65440.

Almost surely, 2^16980730 is an apocalyptic number.

16980730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16980730 is a deficient number, since it is larger than the sum of its proper divisors (15936014).

16980730 is a wasteful number, since it uses less digits than its factorization.

16980730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130641.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 16980730 is about 4120.7681322783. The cubic root of 16980730 is about 257.0309682234.

The spelling of 16980730 in words is "sixteen million, nine hundred eighty thousand, seven hundred thirty".