8722538 has 8 divisors (see below), whose sum is σ = 14273280. Its totient is φ = 3964780.

The previous prime is 8722517. The next prime is 8722541. The reversal of 8722538 is 8352278.

It is a happy number.

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

It is a super-2 number, since 2×8722538² = 152165338322888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8722498 and 8722507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198218 + ... + 198261.

It is an arithmetic number, because the mean of its divisors is an integer number (1784160).

Almost surely, 2^8722538 is an apocalyptic number.

8722538 is a deficient number, since it is larger than the sum of its proper divisors (5550742).

8722538 is a wasteful number, since it uses less digits than its factorization.

8722538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396492.

The product of its digits is 26880, while the sum is 35.

The square root of 8722538 is about 2953.3943184072. The cubic root of 8722538 is about 205.8484605178.

The spelling of 8722538 in words is "eight million, seven hundred twenty-two thousand, five hundred thirty-eight".