385890377 has 2 divisors, whose sum is σ = 385890378. Its totient is φ = 385890376.

The previous prime is 385890341. The next prime is 385890391. The reversal of 385890377 is 773098583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338707216 + 47183161 = 18404^2 + 6869^2 .

It is a cyclic number.

It is not a de Polignac number, because 385890377 - 2⁶ = 385890313 is a prime.

It is a super-2 number, since 2×385890377² = 297822766122404258, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (385890317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192945188 + 192945189.

It is an arithmetic number, because the mean of its divisors is an integer number (192945189).

Almost surely, 2^385890377 is an apocalyptic number.

It is an amenable number.

385890377 is a deficient number, since it is larger than the sum of its proper divisors (1).

385890377 is an equidigital number, since it uses as much as digits as its factorization.

385890377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 385890377 is about 19644.0926743894. The cubic root of 385890377 is about 728.0390085214.

The spelling of 385890377 in words is "three hundred eighty-five million, eight hundred ninety thousand, three hundred seventy-seven".