16073639 has 4 divisors (see below), whose sum is σ = 16919640. Its totient is φ = 15227640.

The previous prime is 16073633. The next prime is 16073641. The reversal of 16073639 is 93637061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16073639 - 2⁸ = 16073383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16073599 and 16073608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16073633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422972 + ... + 423009.

It is an arithmetic number, because the mean of its divisors is an integer number (4229910).

Almost surely, 2^16073639 is an apocalyptic number.

16073639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16073639 is a deficient number, since it is larger than the sum of its proper divisors (846001).

16073639 is an equidigital number, since it uses as much as digits as its factorization.

16073639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846000.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 16073639 is about 4009.1943080873. The cubic root of 16073639 is about 252.3701989457.

The spelling of 16073639 in words is "sixteen million, seventy-three thousand, six hundred thirty-nine".