393196487 has 2 divisors, whose sum is σ = 393196488. Its totient is φ = 393196486.

The previous prime is 393196483. The next prime is 393196513. The reversal of 393196487 is 784691393.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 393196487 - 2² = 393196483 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (393196483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196598243 + 196598244.

It is an arithmetic number, because the mean of its divisors is an integer number (196598244).

Almost surely, 2^393196487 is an apocalyptic number.

393196487 is a deficient number, since it is larger than the sum of its proper divisors (1).

393196487 is an equidigital number, since it uses as much as digits as its factorization.

393196487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 50.

The square root of 393196487 is about 19829.1827113474. The cubic root of 393196487 is about 732.6049965392.

The spelling of 393196487 in words is "three hundred ninety-three million, one hundred ninety-six thousand, four hundred eighty-seven".