395918087 has 2 divisors, whose sum is σ = 395918088. Its totient is φ = 395918086.

The previous prime is 395918023. The next prime is 395918123. The reversal of 395918087 is 780819593.

It is a strong prime.

It is an emirp because it is prime and its reverse (780819593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395918087 - 2⁶ = 395918023 is a prime.

It is a super-2 number, since 2×395918087² = 313502263227479138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395914087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197959043 + 197959044.

It is an arithmetic number, because the mean of its divisors is an integer number (197959044).

Almost surely, 2^395918087 is an apocalyptic number.

395918087 is a deficient number, since it is larger than the sum of its proper divisors (1).

395918087 is an equidigital number, since it uses as much as digits as its factorization.

395918087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 395918087 is about 19897.6904941252. The cubic root of 395918087 is about 734.2914095821.

The spelling of 395918087 in words is "three hundred ninety-five million, nine hundred eighteen thousand, eighty-seven".