387244477 has 2 divisors, whose sum is σ = 387244478. Its totient is φ = 387244476.

The previous prime is 387244469. The next prime is 387244573. The reversal of 387244477 is 774442783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 385965316 + 1279161 = 19646^2 + 1131^2 .

It is a cyclic number.

It is not a de Polignac number, because 387244477 - 2³ = 387244469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387244427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193622238 + 193622239.

It is an arithmetic number, because the mean of its divisors is an integer number (193622239).

Almost surely, 2^387244477 is an apocalyptic number.

It is an amenable number.

387244477 is a deficient number, since it is larger than the sum of its proper divisors (1).

387244477 is an equidigital number, since it uses as much as digits as its factorization.

387244477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1053696, while the sum is 46.

The square root of 387244477 is about 19678.5283240389. The cubic root of 387244477 is about 728.8895840668.

The spelling of 387244477 in words is "three hundred eighty-seven million, two hundred forty-four thousand, four hundred seventy-seven".