16426913 has 6 divisors (see below), whose sum is σ = 17410914. Its totient is φ = 15444896.

The previous prime is 16426901. The next prime is 16426919. The reversal of 16426913 is 31962461.

It can be written as a sum of positive squares in only one way, i.e., 15460624 + 966289 = 3932^2 + 983^2 .

It is not a de Polignac number, because 16426913 - 2⁴ = 16426897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16426913.

It is not an unprimeable number, because it can be changed into a prime (16426919) 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, 16220 + ... + 17202.

It is an arithmetic number, because the mean of its divisors is an integer number (2901819).

Almost surely, 2^16426913 is an apocalyptic number.

It is an amenable number.

16426913 is a deficient number, since it is larger than the sum of its proper divisors (984001).

16426913 is an frugal number, since it uses more digits than its factorization.

16426913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983 (or 1000 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 16426913 is about 4053.0128299822. The cubic root of 16426913 is about 254.2057202494.

The spelling of 16426913 in words is "sixteen million, four hundred twenty-six thousand, nine hundred thirteen".