16396537 has 2 divisors, whose sum is σ = 16396538. Its totient is φ = 16396536.

The previous prime is 16396519. The next prime is 16396547. The reversal of 16396537 is 73569361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15912121 + 484416 = 3989^2 + 696^2 .

It is an emirp because it is prime and its reverse (73569361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16396537 - 2¹⁹ = 15872249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16396537.

It is not a weakly prime, because it can be changed into another prime (16396547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8198268 + 8198269.

It is an arithmetic number, because the mean of its divisors is an integer number (8198269).

Almost surely, 2^16396537 is an apocalyptic number.

It is an amenable number.

16396537 is a deficient number, since it is larger than the sum of its proper divisors (1).

16396537 is an equidigital number, since it uses as much as digits as its factorization.

16396537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 40.

The square root of 16396537 is about 4049.2637602409. The cubic root of 16396537 is about 254.0489345031.

The spelling of 16396537 in words is "sixteen million, three hundred ninety-six thousand, five hundred thirty-seven".