390511073 has 2 divisors, whose sum is σ = 390511074. Its totient is φ = 390511072.

The previous prime is 390511067. The next prime is 390511111. The reversal of 390511073 is 370115093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339001744 + 51509329 = 18412^2 + 7177^2 .

It is an emirp because it is prime and its reverse (370115093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390511073 - 2⁴ = 390511057 is a prime.

It is a super-2 number, since 2×390511073² = 304997796271222658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (390510073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195255536 + 195255537.

It is an arithmetic number, because the mean of its divisors is an integer number (195255537).

Almost surely, 2^390511073 is an apocalyptic number.

It is an amenable number.

390511073 is a deficient number, since it is larger than the sum of its proper divisors (1).

390511073 is an equidigital number, since it uses as much as digits as its factorization.

390511073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 390511073 is about 19761.3530154188. The cubic root of 390511073 is about 730.9333610685.

The spelling of 390511073 in words is "three hundred ninety million, five hundred eleven thousand, seventy-three".