867213573 has 16 divisors (see below), whose sum is σ = 1182547200. Its totient is φ = 565156800.

The previous prime is 867213569. The next prime is 867213583. The reversal of 867213573 is 375312768.

It is not a de Polignac number, because 867213573 - 2² = 867213569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867213553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5823 + ... + 42051.

It is an arithmetic number, because the mean of its divisors is an integer number (73909200).

Almost surely, 2^867213573 is an apocalyptic number.

It is an amenable number.

867213573 is a deficient number, since it is larger than the sum of its proper divisors (315333627).

867213573 is a wasteful number, since it uses less digits than its factorization.

867213573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36412.

The product of its digits is 211680, while the sum is 42.

The square root of 867213573 is about 29448.4901650322. The cubic root of 867213573 is about 953.6200102714.

The spelling of 867213573 in words is "eight hundred sixty-seven million, two hundred thirteen thousand, five hundred seventy-three".