16772457 has 16 divisors (see below), whose sum is σ = 24862208. Its totient is φ = 9987840.

The previous prime is 16772453. The next prime is 16772471. The reversal of 16772457 is 75427761.

It is not a de Polignac number, because 16772457 - 2² = 16772453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (16772453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5728 + ... + 8145.

It is an arithmetic number, because the mean of its divisors is an integer number (1553888).

Almost surely, 2^16772457 is an apocalyptic number.

It is an amenable number.

16772457 is a deficient number, since it is larger than the sum of its proper divisors (8089751).

16772457 is a wasteful number, since it uses less digits than its factorization.

16772457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920.

The product of its digits is 82320, while the sum is 39.

The square root of 16772457 is about 4095.4190261803. The cubic root of 16772457 is about 255.9757921852.

The spelling of 16772457 in words is "sixteen million, seven hundred seventy-two thousand, four hundred fifty-seven".