16977956 has 24 divisors (see below), whose sum is σ = 32008704. Its totient is φ = 7856640.

The previous prime is 16977953. The next prime is 16977959. The reversal of 16977956 is 65977961.

It is an interprime number because it is at equal distance from previous prime (16977953) and next prime (16977959).

It is not an unprimeable number, because it can be changed into a prime (16977953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125 + ... + 5828.

It is an arithmetic number, because the mean of its divisors is an integer number (1333696).

Almost surely, 2^16977956 is an apocalyptic number.

It is an amenable number.

16977956 is a deficient number, since it is larger than the sum of its proper divisors (15030748).

16977956 is a wasteful number, since it uses less digits than its factorization.

16977956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6011 (or 6009 counting only the distinct ones).

The product of its digits is 714420, while the sum is 50.

The square root of 16977956 is about 4120.4315307987. The cubic root of 16977956 is about 257.0169711272.

It can be divided in two parts, 169 and 77956, that added together give a 7-th power (78125 = 5⁷).

The spelling of 16977956 in words is "sixteen million, nine hundred seventy-seven thousand, nine hundred fifty-six".