861297339 has 8 divisors (see below), whose sum is σ = 1312453120. Its totient is φ = 492169896.

The previous prime is 861297317. The next prime is 861297347. The reversal of 861297339 is 933792168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 861297339 - 2⁸ = 861297083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (861297539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20507059 + ... + 20507100.

It is an arithmetic number, because the mean of its divisors is an integer number (164056640).

Almost surely, 2^861297339 is an apocalyptic number.

861297339 is a deficient number, since it is larger than the sum of its proper divisors (451155781).

861297339 is a wasteful number, since it uses less digits than its factorization.

861297339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41014169.

The product of its digits is 489888, while the sum is 48.

The square root of 861297339 is about 29347.8677078932. The cubic root of 861297339 is about 951.4464904229.

The spelling of 861297339 in words is "eight hundred sixty-one million, two hundred ninety-seven thousand, three hundred thirty-nine".