867407121 has 24 divisors (see below), whose sum is σ = 1442226240. Its totient is φ = 492090336.

The previous prime is 867407113. The next prime is 867407147. The reversal of 867407121 is 121704768.

867407121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 867407121 - 2³ = 867407113 is a prime.

It is a super-2 number, since 2×867407121² = 1504790227123017282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (867407921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40770 + ... + 58283.

It is an arithmetic number, because the mean of its divisors is an integer number (60092760).

Almost surely, 2^867407121 is an apocalyptic number.

It is an amenable number.

867407121 is a deficient number, since it is larger than the sum of its proper divisors (574819119).

867407121 is a wasteful number, since it uses less digits than its factorization.

867407121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99205 (or 99202 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 867407121 is about 29451.7761943147. The cubic root of 867407121 is about 953.6909491658.

The spelling of 867407121 in words is "eight hundred sixty-seven million, four hundred seven thousand, one hundred twenty-one".