387949607 has 2 divisors, whose sum is σ = 387949608. Its totient is φ = 387949606.

The previous prime is 387949589. The next prime is 387949621. The reversal of 387949607 is 706949783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 387949607 - 2²⁶ = 320840743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387949687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193974803 + 193974804.

It is an arithmetic number, because the mean of its divisors is an integer number (193974804).

Almost surely, 2^387949607 is an apocalyptic number.

387949607 is a deficient number, since it is larger than the sum of its proper divisors (1).

387949607 is an equidigital number, since it uses as much as digits as its factorization.

387949607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 387949607 is about 19696.4364035731. The cubic root of 387949607 is about 729.3317253168.

The spelling of 387949607 in words is "three hundred eighty-seven million, nine hundred forty-nine thousand, six hundred seven".