16612047 has 20 divisors (see below), whose sum is σ = 25194136. Its totient is φ = 10905840.

The previous prime is 16612039. The next prime is 16612081. The reversal of 16612047 is 74021661.

16612047 is a `hidden beast` number, since 1 + 6 + 612 + 0 + 47 = 666.

It is not a de Polignac number, because 16612047 - 2³ = 16612039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 16612047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16612027) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3897 + ... + 6957.

Almost surely, 2^16612047 is an apocalyptic number.

16612047 is a deficient number, since it is larger than the sum of its proper divisors (8582089).

16612047 is an equidigital number, since it uses as much as digits as its factorization.

16612047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140 (or 3131 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 16612047 is about 4075.7878992901. The cubic root of 16612047 is about 255.1571349850.

The spelling of 16612047 in words is "sixteen million, six hundred twelve thousand, forty-seven".