866349137 has 8 divisors (see below), whose sum is σ = 913828800. Its totient is φ = 819057744.

The previous prime is 866349109. The next prime is 866349151. The reversal of 866349137 is 731943668.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 866349137 - 2¹⁰ = 866348113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 866349091 and 866349100.

It is not an unprimeable number, because it can be changed into a prime (866369137) 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, 37562 + ... + 56067.

It is an arithmetic number, because the mean of its divisors is an integer number (114228600).

Almost surely, 2^866349137 is an apocalyptic number.

It is an amenable number.

866349137 is a deficient number, since it is larger than the sum of its proper divisors (47479663).

866349137 is a wasteful number, since it uses less digits than its factorization.

866349137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94135.

The product of its digits is 653184, while the sum is 47.

The square root of 866349137 is about 29433.8094204607. The cubic root of 866349137 is about 953.3030497034.

The spelling of 866349137 in words is "eight hundred sixty-six million, three hundred forty-nine thousand, one hundred thirty-seven".