16425947 has 6 divisors (see below), whose sum is σ = 16559868. Its totient is φ = 16292792.

The previous prime is 16425943. The next prime is 16425967. The reversal of 16425947 is 74952461.

It is not a de Polignac number, because 16425947 - 2² = 16425943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16425947.

It is not an unprimeable number, because it can be changed into a prime (16425943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60929 + ... + 61197.

It is an arithmetic number, because the mean of its divisors is an integer number (2759978).

Almost surely, 2^16425947 is an apocalyptic number.

16425947 is a deficient number, since it is larger than the sum of its proper divisors (133921).

16425947 is an frugal number, since it uses more digits than its factorization.

16425947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 496 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 16425947 is about 4052.8936576229. The cubic root of 16425947 is about 254.2007372166.

The spelling of 16425947 in words is "sixteen million, four hundred twenty-five thousand, nine hundred forty-seven".