390087377 has 2 divisors, whose sum is σ = 390087378. Its totient is φ = 390087376.

The previous prime is 390087359. The next prime is 390087449. The reversal of 390087377 is 773780093.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328370641 + 61716736 = 18121^2 + 7856^2 .

It is a cyclic number.

It is not a de Polignac number, because 390087377 - 2²⁰ = 389038801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (390087307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195043688 + 195043689.

It is an arithmetic number, because the mean of its divisors is an integer number (195043689).

Almost surely, 2^390087377 is an apocalyptic number.

It is an amenable number.

390087377 is a deficient number, since it is larger than the sum of its proper divisors (1).

390087377 is an equidigital number, since it uses as much as digits as its factorization.

390087377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 390087377 is about 19750.6297874270. The cubic root of 390087377 is about 730.6689164864.

The spelling of 390087377 in words is "three hundred ninety million, eighty-seven thousand, three hundred seventy-seven".