16479457 has 2 divisors, whose sum is σ = 16479458. Its totient is φ = 16479456.

The previous prime is 16479347. The next prime is 16479487. The reversal of 16479457 is 75497461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13660416 + 2819041 = 3696^2 + 1679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16479457 is a prime.

It is not a weakly prime, because it can be changed into another prime (16479487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8239728 + 8239729.

It is an arithmetic number, because the mean of its divisors is an integer number (8239729).

Almost surely, 2^16479457 is an apocalyptic number.

It is an amenable number.

16479457 is a deficient number, since it is larger than the sum of its proper divisors (1).

16479457 is an equidigital number, since it uses as much as digits as its factorization.

16479457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 43.

The square root of 16479457 is about 4059.4897462612. The cubic root of 16479457 is about 254.4764704336.

The spelling of 16479457 in words is "sixteen million, four hundred seventy-nine thousand, four hundred fifty-seven".