387343477 has 2 divisors, whose sum is σ = 387343478. Its totient is φ = 387343476.

The previous prime is 387343469. The next prime is 387343501. The reversal of 387343477 is 774343783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359822961 + 27520516 = 18969^2 + 5246^2 .

It is a cyclic number.

It is not a de Polignac number, because 387343477 - 2³ = 387343469 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387343427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193671738 + 193671739.

It is an arithmetic number, because the mean of its divisors is an integer number (193671739).

Almost surely, 2^387343477 is an apocalyptic number.

It is an amenable number.

387343477 is a deficient number, since it is larger than the sum of its proper divisors (1).

387343477 is an equidigital number, since it uses as much as digits as its factorization.

387343477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 46.

The square root of 387343477 is about 19681.0435952975. The cubic root of 387343477 is about 728.9516929108.

The spelling of 387343477 in words is "three hundred eighty-seven million, three hundred forty-three thousand, four hundred seventy-seven".