938607389 has 2 divisors, whose sum is σ = 938607390. Its totient is φ = 938607388.

The previous prime is 938607337. The next prime is 938607401. The reversal of 938607389 is 983706839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 500416900 + 438190489 = 22370^2 + 20933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-938607389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 938607389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (938607289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469303694 + 469303695.

It is an arithmetic number, because the mean of its divisors is an integer number (469303695).

Almost surely, 2^938607389 is an apocalyptic number.

It is an amenable number.

938607389 is a deficient number, since it is larger than the sum of its proper divisors (1).

938607389 is an equidigital number, since it uses as much as digits as its factorization.

938607389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 938607389 is about 30636.7000344358. The cubic root of 938607389 is about 979.1021170047.

The spelling of 938607389 in words is "nine hundred thirty-eight million, six hundred seven thousand, three hundred eighty-nine".