1393304929 has 9 divisors (see below), whose sum is σ = 1408053843. Its totient is φ = 1378710072.

The previous prime is 1393304897. The next prime is 1393304947. The reversal of 1393304929 is 9294033931.

It is a happy number.

The square root of 1393304929 is 37327.

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., 1297656529 + 95648400 = 36023^2 + 9780^2 .

It is not a de Polignac number, because 1393304929 - 2⁵ = 1393304897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393304729) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6084187 + ... + 6084415.

It is an arithmetic number, because the mean of its divisors is an integer number (156450427).

Almost surely, 2^1393304929 is an apocalyptic number.

1393304929 is the 37327-th square number.

1393304929 is the 18664-th centered octagonal number.

It is an amenable number.

1393304929 is a deficient number, since it is larger than the sum of its proper divisors (14748914).

1393304929 is an frugal number, since it uses more digits than its factorization.

1393304929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 43.

The cubic root of 1393304929 is about 1116.9028295140.

The spelling of 1393304929 in words is "one billion, three hundred ninety-three million, three hundred four thousand, nine hundred twenty-nine".