18429707 has 2 divisors, whose sum is σ = 18429708. Its totient is φ = 18429706.

The previous prime is 18429689. The next prime is 18429713. The reversal of 18429707 is 70792481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18429707 - 2¹⁴ = 18413323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18429767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9214853 + 9214854.

It is an arithmetic number, because the mean of its divisors is an integer number (9214854).

Almost surely, 2^18429707 is an apocalyptic number.

18429707 is a deficient number, since it is larger than the sum of its proper divisors (1).

18429707 is an equidigital number, since it uses as much as digits as its factorization.

18429707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 18429707 is about 4292.9834614170. The cubic root of 18429707 is about 264.1432255812.

The spelling of 18429707 in words is "eighteen million, four hundred twenty-nine thousand, seven hundred seven".