16497801 has 6 divisors (see below), whose sum is σ = 23830170. Its totient is φ = 10998528.

The previous prime is 16497779. The next prime is 16497809. The reversal of 16497801 is 10879461.

16497801 is a `hidden beast` number, since 1 + 649 + 7 + 8 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14175225 + 2322576 = 3765^2 + 1524^2 .

It is not a de Polignac number, because 16497801 - 2⁶ = 16497737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16497809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 916536 + ... + 916553.

It is an arithmetic number, because the mean of its divisors is an integer number (3971695).

Almost surely, 2^16497801 is an apocalyptic number.

It is an amenable number.

16497801 is a deficient number, since it is larger than the sum of its proper divisors (7332369).

16497801 is a wasteful number, since it uses less digits than its factorization.

16497801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833095 (or 1833092 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 16497801 is about 4061.7485151102. The cubic root of 16497801 is about 254.5708583605.

The spelling of 16497801 in words is "sixteen million, four hundred ninety-seven thousand, eight hundred one".