8721367 has 8 divisors (see below), whose sum is σ = 9003456. Its totient is φ = 8443392.

The previous prime is 8721359. The next prime is 8721371. The reversal of 8721367 is 7631278.

8721367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8721367 - 2³ = 8721359 is a prime.

It is a super-4 number, since 4×8721367⁴ (a number of 29 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8721467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3603 + ... + 5515.

It is an arithmetic number, because the mean of its divisors is an integer number (1125432).

Almost surely, 2^8721367 is an apocalyptic number.

8721367 is a deficient number, since it is larger than the sum of its proper divisors (282089).

8721367 is a wasteful number, since it uses less digits than its factorization.

8721367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057.

The product of its digits is 14112, while the sum is 34.

The square root of 8721367 is about 2953.1960652825. The cubic root of 8721367 is about 205.8392483926.

The spelling of 8721367 in words is "eight million, seven hundred twenty-one thousand, three hundred sixty-seven".