16374997 has 2 divisors, whose sum is σ = 16374998. Its totient is φ = 16374996.

The previous prime is 16374991. The next prime is 16375013. The reversal of 16374997 is 79947361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9790641 + 6584356 = 3129^2 + 2566^2 .

It is a cyclic number.

It is not a de Polignac number, because 16374997 - 2²³ = 7986389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16374991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8187498 + 8187499.

It is an arithmetic number, because the mean of its divisors is an integer number (8187499).

Almost surely, 2^16374997 is an apocalyptic number.

It is an amenable number.

16374997 is a deficient number, since it is larger than the sum of its proper divisors (1).

16374997 is an equidigital number, since it uses as much as digits as its factorization.

16374997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 46.

The square root of 16374997 is about 4046.6031433784. The cubic root of 16374997 is about 253.9376383990.

It can be divided in two parts, 16374 and 997, that added together give a palindrome (17371).

The spelling of 16374997 in words is "sixteen million, three hundred seventy-four thousand, nine hundred ninety-seven".