16323977 has 2 divisors, whose sum is σ = 16323978. Its totient is φ = 16323976.

The previous prime is 16323973. The next prime is 16324003. The reversal of 16323977 is 77932361.

16323977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15649936 + 674041 = 3956^2 + 821^2 .

It is a cyclic number.

It is not a de Polignac number, because 16323977 - 2² = 16323973 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16323977.

It is not a weakly prime, because it can be changed into another prime (16323971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8161988 + 8161989.

It is an arithmetic number, because the mean of its divisors is an integer number (8161989).

Almost surely, 2^16323977 is an apocalyptic number.

It is an amenable number.

16323977 is a deficient number, since it is larger than the sum of its proper divisors (1).

16323977 is an equidigital number, since it uses as much as digits as its factorization.

16323977 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 16323977 is about 4040.2941724582. The cubic root of 16323977 is about 253.6736306697.

The spelling of 16323977 in words is "sixteen million, three hundred twenty-three thousand, nine hundred seventy-seven".