861297106 has 8 divisors (see below), whose sum is σ = 1292635260. Its totient is φ = 430418688.

The previous prime is 861297083. The next prime is 861297121. The reversal of 861297106 is 601792168.

It can be written as a sum of positive squares in 2 ways, for example, as 775901025 + 85396081 = 27855^2 + 9241^2 .

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

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, 110211 + ... + 117766.

Almost surely, 2^861297106 is an apocalyptic number.

861297106 is a deficient number, since it is larger than the sum of its proper divisors (431338154).

861297106 is a wasteful number, since it uses less digits than its factorization.

861297106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229868.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 861297106 is about 29347.8637382689. The cubic root of 861297106 is about 951.4464046271.

The spelling of 861297106 in words is "eight hundred sixty-one million, two hundred ninety-seven thousand, one hundred six".