387472807 has 2 divisors, whose sum is σ = 387472808. Its totient is φ = 387472806.

The previous prime is 387472753. The next prime is 387472817. The reversal of 387472807 is 708274783.

It is a strong prime.

It is an emirp because it is prime and its reverse (708274783) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387472807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387472817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193736403 + 193736404.

It is an arithmetic number, because the mean of its divisors is an integer number (193736404).

Almost surely, 2^387472807 is an apocalyptic number.

387472807 is a deficient number, since it is larger than the sum of its proper divisors (1).

387472807 is an equidigital number, since it uses as much as digits as its factorization.

387472807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 526848, while the sum is 46.

The square root of 387472807 is about 19684.3289700208. The cubic root of 387472807 is about 729.0328137053.

The spelling of 387472807 in words is "three hundred eighty-seven million, four hundred seventy-two thousand, eight hundred seven".