390074487 has 8 divisors (see below), whose sum is σ = 567381120. Its totient is φ = 236408760.

The previous prime is 390074471. The next prime is 390074491. The reversal of 390074487 is 784470093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 390074487 - 2⁴ = 390074471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390074417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5910187 + ... + 5910252.

It is an arithmetic number, because the mean of its divisors is an integer number (70922640).

Almost surely, 2^390074487 is an apocalyptic number.

390074487 is a deficient number, since it is larger than the sum of its proper divisors (177306633).

390074487 is a wasteful number, since it uses less digits than its factorization.

390074487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11820453.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 390074487 is about 19750.3034660230. The cubic root of 390074487 is about 730.6608683527.

It can be divided in two parts, 3900 and 74487, that added together give a palindrome (78387).

The spelling of 390074487 in words is "three hundred ninety million, seventy-four thousand, four hundred eighty-seven".