16372973 has 2 divisors, whose sum is σ = 16372974. Its totient is φ = 16372972.

The previous prime is 16372963. The next prime is 16372997. The reversal of 16372973 is 37927361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14235529 + 2137444 = 3773^2 + 1462^2 .

It is an emirp because it is prime and its reverse (37927361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16372973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16372903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8186486 + 8186487.

It is an arithmetic number, because the mean of its divisors is an integer number (8186487).

Almost surely, 2^16372973 is an apocalyptic number.

It is an amenable number.

16372973 is a deficient number, since it is larger than the sum of its proper divisors (1).

16372973 is an equidigital number, since it uses as much as digits as its factorization.

16372973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 38.

The square root of 16372973 is about 4046.3530493520. The cubic root of 16372973 is about 253.9271754768.

The spelling of 16372973 in words is "sixteen million, three hundred seventy-two thousand, nine hundred seventy-three".