16957845 has 12 divisors (see below), whose sum is σ = 29393676. Its totient is φ = 9044160.

The previous prime is 16957841. The next prime is 16957847. The reversal of 16957845 is 54875961.

It can be written as a sum of positive squares in 2 ways, for example, as 11009124 + 5948721 = 3318^2 + 2439^2 .

It is not a de Polignac number, because 16957845 - 2² = 16957841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 376841 = 16957845 / (1 + 6 + 9 + 5 + 7 + 8 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 16957845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16957841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188376 + ... + 188465.

It is an arithmetic number, because the mean of its divisors is an integer number (2449473).

Almost surely, 2^16957845 is an apocalyptic number.

16957845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16957845 is a deficient number, since it is larger than the sum of its proper divisors (12435831).

16957845 is a wasteful number, since it uses less digits than its factorization.

16957845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376852 (or 376849 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 16957845 is about 4117.9904079539. The cubic root of 16957845 is about 256.9154490799.

The spelling of 16957845 in words is "sixteen million, nine hundred fifty-seven thousand, eight hundred forty-five".