16770919 has 4 divisors (see below), whose sum is σ = 18295560. Its totient is φ = 15246280.

The previous prime is 16770899. The next prime is 16770931. The reversal of 16770919 is 91907761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91907761 = 11 ⋅8355251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16770919 is a prime.

It is a super-2 number, since 2×16770919² = 562527448209122, 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 (16770119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762304 + ... + 762325.

It is an arithmetic number, because the mean of its divisors is an integer number (4573890).

Almost surely, 2^16770919 is an apocalyptic number.

16770919 is a deficient number, since it is larger than the sum of its proper divisors (1524641).

16770919 is a wasteful number, since it uses less digits than its factorization.

16770919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524640.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 16770919 is about 4095.2312511017. The cubic root of 16770919 is about 255.9679677939.

It can be divided in two parts, 16770 and 919, that added together give a square (17689 = 133²).

The spelling of 16770919 in words is "sixteen million, seven hundred seventy thousand, nine hundred nineteen".