867809097 has 12 divisors (see below), whose sum is σ = 1319476080. Its totient is φ = 548089848.

The previous prime is 867809077. The next prime is 867809123. The reversal of 867809097 is 790908768.

It is not a de Polignac number, because 867809097 - 2¹⁴ = 867792713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (867809027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2537283 + ... + 2537624.

It is an arithmetic number, because the mean of its divisors is an integer number (109956340).

Almost surely, 2^867809097 is an apocalyptic number.

It is an amenable number.

867809097 is a deficient number, since it is larger than the sum of its proper divisors (451666983).

867809097 is a wasteful number, since it uses less digits than its factorization.

867809097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074932 (or 5074929 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The square root of 867809097 is about 29458.5997121384. The cubic root of 867809097 is about 953.8382470377.

The spelling of 867809097 in words is "eight hundred sixty-seven million, eight hundred nine thousand, ninety-seven".