16465939 has 12 divisors (see below), whose sum is σ = 19496464. Its totient is φ = 13622112.

The previous prime is 16465921. The next prime is 16465949. The reversal of 16465939 is 93956461.

It is not a de Polignac number, because 16465939 - 2⁷ = 16465811 is a prime.

It is a super-2 number, since 2×16465939² = 542254294303442, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16465895 and 16465904.

It is not an unprimeable number, because it can be changed into a prime (16465949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4489 + ... + 7285.

Almost surely, 2^16465939 is an apocalyptic number.

16465939 is a deficient number, since it is larger than the sum of its proper divisors (3030525).

16465939 is an equidigital number, since it uses as much as digits as its factorization.

16465939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862 (or 2833 counting only the distinct ones).

The product of its digits is 174960, while the sum is 43.

The square root of 16465939 is about 4057.8244170984. The cubic root of 16465939 is about 254.4068695569.

The spelling of 16465939 in words is "sixteen million, four hundred sixty-five thousand, nine hundred thirty-nine".