390728627587 has 16 divisors (see below), whose sum is σ = 410468872192. Its totient is φ = 371465170560.

The previous prime is 390728627581. The next prime is 390728627593. The reversal of 390728627587 is 785726827093.

It is an interprime number because it is at equal distance from previous prime (390728627581) and next prime (390728627593).

It is a cyclic number.

It is not a de Polignac number, because 390728627587 - 2¹⁵ = 390728594819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390728627581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505963 + ... + 1018555.

It is an arithmetic number, because the mean of its divisors is an integer number (25654304512).

Almost surely, 2^390728627587 is an apocalyptic number.

390728627587 is a deficient number, since it is larger than the sum of its proper divisors (19740244605).

390728627587 is a wasteful number, since it uses less digits than its factorization.

390728627587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513058.

The product of its (nonzero) digits is 71124480, while the sum is 64.

The spelling of 390728627587 in words is "three hundred ninety billion, seven hundred twenty-eight million, six hundred twenty-seven thousand, five hundred eighty-seven".