16773397 has 8 divisors (see below), whose sum is σ = 17756640. Its totient is φ = 15817200.

The previous prime is 16773347. The next prime is 16773401. The reversal of 16773397 is 79337761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16773397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16773307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5479 + ... + 7972.

It is an arithmetic number, because the mean of its divisors is an integer number (2219580).

Almost surely, 2^16773397 is an apocalyptic number.

It is an amenable number.

16773397 is a deficient number, since it is larger than the sum of its proper divisors (983243).

16773397 is a wasteful number, since it uses less digits than its factorization.

16773397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13523.

The product of its digits is 166698, while the sum is 43.

The square root of 16773397 is about 4095.5337869440. The cubic root of 16773397 is about 255.9805740875.

The spelling of 16773397 in words is "sixteen million, seven hundred seventy-three thousand, three hundred ninety-seven".