16794945 has 48 divisors (see below), whose sum is σ = 31554432. Its totient is φ = 8553600.

The previous prime is 16794941. The next prime is 16794959. The reversal of 16794945 is 54949761.

It is not a de Polignac number, because 16794945 - 2² = 16794941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16794945.

It is not an unprimeable number, because it can be changed into a prime (16794941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27645 + ... + 28245.

It is an arithmetic number, because the mean of its divisors is an integer number (657384).

Almost surely, 2^16794945 is an apocalyptic number.

16794945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16794945 is a deficient number, since it is larger than the sum of its proper divisors (14759487).

16794945 is an equidigital number, since it uses as much as digits as its factorization.

16794945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 632 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 16794945 is about 4098.1636131321. The cubic root of 16794945 is about 256.0901426124.

The spelling of 16794945 in words is "sixteen million, seven hundred ninety-four thousand, nine hundred forty-five".