390909482087 has 2 divisors, whose sum is σ = 390909482088. Its totient is φ = 390909482086.

The previous prime is 390909482057. The next prime is 390909482113. The reversal of 390909482087 is 780284909093.

It is a strong prime.

It is an emirp because it is prime and its reverse (780284909093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390909482087 - 2²⁶ = 390842373223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390909482017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195454741043 + 195454741044.

It is an arithmetic number, because the mean of its divisors is an integer number (195454741044).

Almost surely, 2^390909482087 is an apocalyptic number.

390909482087 is a deficient number, since it is larger than the sum of its proper divisors (1).

390909482087 is an equidigital number, since it uses as much as digits as its factorization.

390909482087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 390909482087 in words is "three hundred ninety billion, nine hundred nine million, four hundred eighty-two thousand, eighty-seven".