867880917 has 48 divisors (see below), whose sum is σ = 1363440000. Its totient is φ = 530105472.

The previous prime is 867880913. The next prime is 867880921. The reversal of 867880917 is 719088768.

It is an interprime number because it is at equal distance from previous prime (867880913) and next prime (867880921).

It is not a de Polignac number, because 867880917 - 2² = 867880913 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867880913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1448584 + ... + 1449182.

It is an arithmetic number, because the mean of its divisors is an integer number (28405000).

Almost surely, 2^867880917 is an apocalyptic number.

It is an amenable number.

867880917 is a deficient number, since it is larger than the sum of its proper divisors (495559083).

867880917 is a wasteful number, since it uses less digits than its factorization.

867880917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The square root of 867880917 is about 29459.8186857964. The cubic root of 867880917 is about 953.8645595732.

The spelling of 867880917 in words is "eight hundred sixty-seven million, eight hundred eighty thousand, nine hundred seventeen".