389740007 has 2 divisors, whose sum is σ = 389740008. Its totient is φ = 389740006.

The previous prime is 389739983. The next prime is 389740033. The reversal of 389740007 is 700047983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389740007 - 2²⁴ = 372962791 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 (389740207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194870003 + 194870004.

It is an arithmetic number, because the mean of its divisors is an integer number (194870004).

Almost surely, 2^389740007 is an apocalyptic number.

389740007 is a deficient number, since it is larger than the sum of its proper divisors (1).

389740007 is an equidigital number, since it uses as much as digits as its factorization.

389740007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 389740007 is about 19741.8339320338. The cubic root of 389740007 is about 730.4519669402.

The spelling of 389740007 in words is "three hundred eighty-nine million, seven hundred forty thousand, seven".