387670007 has 2 divisors, whose sum is σ = 387670008. Its totient is φ = 387670006.

The previous prime is 387669967. The next prime is 387670039. The reversal of 387670007 is 700076783.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387670007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387672007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193835003 + 193835004.

It is an arithmetic number, because the mean of its divisors is an integer number (193835004).

Almost surely, 2^387670007 is an apocalyptic number.

387670007 is a deficient number, since it is larger than the sum of its proper divisors (1).

387670007 is an equidigital number, since it uses as much as digits as its factorization.

387670007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 387670007 is about 19689.3373936250. The cubic root of 387670007 is about 729.1564704591.

The spelling of 387670007 in words is "three hundred eighty-seven million, six hundred seventy thousand, seven".