18575707 has 2 divisors, whose sum is σ = 18575708. Its totient is φ = 18575706.

The previous prime is 18575647. The next prime is 18575717. The reversal of 18575707 is 70757581.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18575707 - 2¹⁵ = 18542939 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18575707.

It is not a weakly prime, because it can be changed into another prime (18575717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9287853 + 9287854.

It is an arithmetic number, because the mean of its divisors is an integer number (9287854).

Almost surely, 2^18575707 is an apocalyptic number.

18575707 is a deficient number, since it is larger than the sum of its proper divisors (1).

18575707 is an equidigital number, since it uses as much as digits as its factorization.

18575707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68600, while the sum is 40.

The square root of 18575707 is about 4309.9544081115. The cubic root of 18575707 is about 264.8389052936.

The spelling of 18575707 in words is "eighteen million, five hundred seventy-five thousand, seven hundred seven".