393425287 has 2 divisors, whose sum is σ = 393425288. Its totient is φ = 393425286.

The previous prime is 393425269. The next prime is 393425311. The reversal of 393425287 is 782524393.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 393425287 - 2¹⁹ = 392900999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (393425387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196712643 + 196712644.

It is an arithmetic number, because the mean of its divisors is an integer number (196712644).

Almost surely, 2^393425287 is an apocalyptic number.

393425287 is a deficient number, since it is larger than the sum of its proper divisors (1).

393425287 is an equidigital number, since it uses as much as digits as its factorization.

393425287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 393425287 is about 19834.9511469023. The cubic root of 393425287 is about 732.7470692914.

The spelling of 393425287 in words is "three hundred ninety-three million, four hundred twenty-five thousand, two hundred eighty-seven".