390462487 has 2 divisors, whose sum is σ = 390462488. Its totient is φ = 390462486.

The previous prime is 390462451. The next prime is 390462493. The reversal of 390462487 is 784264093.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 390462487 - 2¹⁵ = 390429719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390462427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195231243 + 195231244.

It is an arithmetic number, because the mean of its divisors is an integer number (195231244).

Almost surely, 2^390462487 is an apocalyptic number.

390462487 is a deficient number, since it is larger than the sum of its proper divisors (1).

390462487 is an equidigital number, since it uses as much as digits as its factorization.

390462487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 390462487 is about 19760.1236585200. The cubic root of 390462487 is about 730.9030464341.

The spelling of 390462487 in words is "three hundred ninety million, four hundred sixty-two thousand, four hundred eighty-seven".