16315697 has 2 divisors, whose sum is σ = 16315698. Its totient is φ = 16315696.

The previous prime is 16315669. The next prime is 16315723. The reversal of 16315697 is 79651361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10764961 + 5550736 = 3281^2 + 2356^2 .

It is a cyclic number.

It is not a de Polignac number, because 16315697 - 2¹⁶ = 16250161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16315697.

It is not a weakly prime, because it can be changed into another prime (16315667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8157848 + 8157849.

It is an arithmetic number, because the mean of its divisors is an integer number (8157849).

Almost surely, 2^16315697 is an apocalyptic number.

It is an amenable number.

16315697 is a deficient number, since it is larger than the sum of its proper divisors (1).

16315697 is an equidigital number, since it uses as much as digits as its factorization.

16315697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 38.

The square root of 16315697 is about 4039.2693646252. The cubic root of 16315697 is about 253.6307331802.

The spelling of 16315697 in words is "sixteen million, three hundred fifteen thousand, six hundred ninety-seven".