867022747 has 4 divisors (see below), whose sum is σ = 867096360. Its totient is φ = 866949136.

The previous prime is 867022727. The next prime is 867022753. The reversal of 867022747 is 747220768.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 4-Lehmer number, since φ(867022747) divides (867022747-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 867022747 - 2⁷ = 867022619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867022727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14722 + ... + 44167.

It is an arithmetic number, because the mean of its divisors is an integer number (216774090).

It is a Poulet number, since it divides 2^867022746-1.

Almost surely, 2^867022747 is an apocalyptic number.

867022747 is the 14723-rd decagonal number.

867022747 is a deficient number, since it is larger than the sum of its proper divisors (73613).

867022747 is a wasteful number, since it uses less digits than its factorization.

867022747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73612.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 867022747 is about 29445.2499904484. The cubic root of 867022747 is about 953.5500587058.

The spelling of 867022747 in words is "eight hundred sixty-seven million, twenty-two thousand, seven hundred forty-seven".