18714473 has 2 divisors, whose sum is σ = 18714474. Its totient is φ = 18714472.

The previous prime is 18714469. The next prime is 18714517. The reversal of 18714473 is 37441781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9935104 + 8779369 = 3152^2 + 2963^2 .

It is a cyclic number.

It is not a de Polignac number, because 18714473 - 2² = 18714469 is a prime.

It is not a weakly prime, because it can be changed into another prime (18714463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9357236 + 9357237.

It is an arithmetic number, because the mean of its divisors is an integer number (9357237).

Almost surely, 2^18714473 is an apocalyptic number.

It is an amenable number.

18714473 is a deficient number, since it is larger than the sum of its proper divisors (1).

18714473 is an equidigital number, since it uses as much as digits as its factorization.

18714473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 35.

The square root of 18714473 is about 4326.0227692420. The cubic root of 18714473 is about 265.4967447818.

The spelling of 18714473 in words is "eighteen million, seven hundred fourteen thousand, four hundred seventy-three".