1047170879 has 4 divisors (see below), whose sum is σ = 1108769184. Its totient is φ = 985572576.

The previous prime is 1047170869. The next prime is 1047170941. The reversal of 1047170879 is 9780717401.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1047170879 - 2⁸ = 1047170623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047170809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30799127 + ... + 30799160.

It is an arithmetic number, because the mean of its divisors is an integer number (277192296).

Almost surely, 2^1047170879 is an apocalyptic number.

1047170879 is a deficient number, since it is larger than the sum of its proper divisors (61598305).

1047170879 is an equidigital number, since it uses as much as digits as its factorization.

1047170879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61598304.

The product of its (nonzero) digits is 98784, while the sum is 44.

The square root of 1047170879 is about 32360.0197620459. The cubic root of 1047170879 is about 1015.4826759447.

The spelling of 1047170879 in words is "one billion, forty-seven million, one hundred seventy thousand, eight hundred seventy-nine".