386279716 has 27 divisors (see below), whose sum is σ = 700709457. Its totient is φ = 186319920.

The previous prime is 386279711. The next prime is 386279827. The reversal of 386279716 is 617972683.

It is a happy number.

The square root of 386279716 is 19654.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 21622500 + 364657216 = 4650^2 + 19096^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 386279716.

It is not an unprimeable number, because it can be changed into a prime (386279711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1218390 + ... + 1218706.

Almost surely, 2^386279716 is an apocalyptic number.

386279716 is the 19654-th square number.

It is an amenable number.

386279716 is a deficient number, since it is larger than the sum of its proper divisors (314429741).

386279716 is an equidigital number, since it uses as much as digits as its factorization.

386279716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 350 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The cubic root of 386279716 is about 728.2837746698.

Multiplying 386279716 by its sum of digits (49), we get a square (18927706084 = 137578²).

The spelling of 386279716 in words is "three hundred eighty-six million, two hundred seventy-nine thousand, seven hundred sixteen".