16790977 has 6 divisors (see below), whose sum is σ = 19532418. Its totient is φ = 14392224.

The previous prime is 16790953. The next prime is 16790981. The reversal of 16790977 is 77909761.

It can be written as a sum of positive squares in only one way, i.e., 14984641 + 1806336 = 3871^2 + 1344^2 .

It is not a de Polignac number, because 16790977 - 2¹¹ = 16788929 is a prime.

It is a super-2 number, since 2×16790977² = 563873817229058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16790077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171288 + ... + 171385.

It is an arithmetic number, because the mean of its divisors is an integer number (3255403).

Almost surely, 2^16790977 is an apocalyptic number.

It is an amenable number.

16790977 is a deficient number, since it is larger than the sum of its proper divisors (2741441).

16790977 is an equidigital number, since it uses as much as digits as its factorization.

16790977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342687 (or 342680 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 46.

The square root of 16790977 is about 4097.6794652584. The cubic root of 16790977 is about 256.0699729379.

The spelling of 16790977 in words is "sixteen million, seven hundred ninety thousand, nine hundred seventy-seven".