388774073 has 2 divisors, whose sum is σ = 388774074. Its totient is φ = 388774072.

The previous prime is 388774049. The next prime is 388774081. The reversal of 388774073 is 370477883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343991209 + 44782864 = 18547^2 + 6692^2 .

It is a cyclic number.

It is not a de Polignac number, because 388774073 - 2⁸ = 388773817 is a prime.

It is a super-2 number, since 2×388774073² = 302290559674018658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (388774093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194387036 + 194387037.

It is an arithmetic number, because the mean of its divisors is an integer number (194387037).

Almost surely, 2^388774073 is an apocalyptic number.

It is an amenable number.

388774073 is a deficient number, since it is larger than the sum of its proper divisors (1).

388774073 is an equidigital number, since it uses as much as digits as its factorization.

388774073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 790272, while the sum is 47.

The square root of 388774073 is about 19717.3546146536. The cubic root of 388774073 is about 729.8480155227.

The spelling of 388774073 in words is "three hundred eighty-eight million, seven hundred seventy-four thousand, seventy-three".