390076647 has 8 divisors (see below), whose sum is σ = 520193520. Its totient is φ = 260005440.

The previous prime is 390076637. The next prime is 390076657. The reversal of 390076647 is 746670093.

It is an interprime number because it is at equal distance from previous prime (390076637) and next prime (390076657).

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

It is not a de Polignac number, because 390076647 - 2¹⁴ = 390060263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 390076599 and 390076608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390076637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26697 + ... + 38637.

It is an arithmetic number, because the mean of its divisors is an integer number (65024190).

Almost surely, 2^390076647 is an apocalyptic number.

390076647 is a deficient number, since it is larger than the sum of its proper divisors (130116873).

390076647 is a wasteful number, since it uses less digits than its factorization.

390076647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22833.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 390076647 is about 19750.3581486514. The cubic root of 390076647 is about 730.6622170050.

It can be divided in two parts, 39007 and 6647, that added together give a palindrome (45654).

The spelling of 390076647 in words is "three hundred ninety million, seventy-six thousand, six hundred forty-seven".