386071493 has 2 divisors, whose sum is σ = 386071494. Its totient is φ = 386071492.

The previous prime is 386071481. The next prime is 386071529. The reversal of 386071493 is 394170683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378574849 + 7496644 = 19457^2 + 2738^2 .

It is a cyclic number.

It is not a de Polignac number, because 386071493 - 2²⁶ = 318962629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 386071493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386071423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193035746 + 193035747.

It is an arithmetic number, because the mean of its divisors is an integer number (193035747).

Almost surely, 2^386071493 is an apocalyptic number.

It is an amenable number.

386071493 is a deficient number, since it is larger than the sum of its proper divisors (1).

386071493 is an equidigital number, since it uses as much as digits as its factorization.

386071493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 386071493 is about 19648.7020690935. The cubic root of 386071493 is about 728.1528913727.

The spelling of 386071493 in words is "three hundred eighty-six million, seventy-one thousand, four hundred ninety-three".