386538829 has 2 divisors, whose sum is σ = 386538830. Its totient is φ = 386538828.

The previous prime is 386538799. The next prime is 386538847. The reversal of 386538829 is 928835683.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220077225 + 166461604 = 14835^2 + 12902^2 .

It is an emirp because it is prime and its reverse (928835683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 386538829 - 2²⁵ = 352984397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386538899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193269414 + 193269415.

It is an arithmetic number, because the mean of its divisors is an integer number (193269415).

Almost surely, 2^386538829 is an apocalyptic number.

It is an amenable number.

386538829 is a deficient number, since it is larger than the sum of its proper divisors (1).

386538829 is an equidigital number, since it uses as much as digits as its factorization.

386538829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 52.

The square root of 386538829 is about 19660.5907591812. The cubic root of 386538829 is about 728.4465803666.

The spelling of 386538829 in words is "three hundred eighty-six million, five hundred thirty-eight thousand, eight hundred twenty-nine".