17930047 has 2 divisors, whose sum is σ = 17930048. Its totient is φ = 17930046.

The previous prime is 17930039. The next prime is 17930051. The reversal of 17930047 is 74003971.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17930047 - 2³ = 17930039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17930347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8965023 + 8965024.

It is an arithmetic number, because the mean of its divisors is an integer number (8965024).

Almost surely, 2^17930047 is an apocalyptic number.

17930047 is a deficient number, since it is larger than the sum of its proper divisors (1).

17930047 is an equidigital number, since it uses as much as digits as its factorization.

17930047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 17930047 is about 4234.3886217493. The cubic root of 17930047 is about 261.7342010401.

The spelling of 17930047 in words is "seventeen million, nine hundred thirty thousand, forty-seven".