1047372385 has 4 divisors (see below), whose sum is σ = 1256846868. Its totient is φ = 837897904.

The previous prime is 1047372373. The next prime is 1047372409. The reversal of 1047372385 is 5832737401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 701561169 + 345811216 = 26487^2 + 18596^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047372385 - 2⁹ = 1047371873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104737234 + ... + 104737243.

It is an arithmetic number, because the mean of its divisors is an integer number (314211717).

Almost surely, 2^1047372385 is an apocalyptic number.

It is an amenable number.

1047372385 is a deficient number, since it is larger than the sum of its proper divisors (209474483).

1047372385 is an equidigital number, since it uses as much as digits as its factorization.

1047372385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209474482.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 1047372385 is about 32363.1331147032. The cubic root of 1047372385 is about 1015.5478078578.

The spelling of 1047372385 in words is "one billion, forty-seven million, three hundred seventy-two thousand, three hundred eighty-five".