16772479 has 4 divisors (see below), whose sum is σ = 16866360. Its totient is φ = 16678600.

The previous prime is 16772471. The next prime is 16772491. The reversal of 16772479 is 97427761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97427761 = 31 ⋅3142831.

It is a cyclic number.

It is not a de Polignac number, because 16772479 - 2³ = 16772471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16772471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46672 + ... + 47029.

It is an arithmetic number, because the mean of its divisors is an integer number (4216590).

Almost surely, 2^16772479 is an apocalyptic number.

16772479 is a deficient number, since it is larger than the sum of its proper divisors (93881).

16772479 is an equidigital number, since it uses as much as digits as its factorization.

16772479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93880.

The product of its digits is 148176, while the sum is 43.

The square root of 16772479 is about 4095.4217121073. The cubic root of 16772479 is about 255.9759041041.

The spelling of 16772479 in words is "sixteen million, seven hundred seventy-two thousand, four hundred seventy-nine".