72222073 has 8 divisors (see below), whose sum is σ = 90043200. Its totient is φ = 56276880.

The previous prime is 72222071. The next prime is 72222079. The reversal of 72222073 is 37022227.

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

It is not a de Polignac number, because 72222073 - 2¹ = 72222071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72222071) 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, 468898 + ... + 469051.

It is an arithmetic number, because the mean of its divisors is an integer number (11255400).

Almost surely, 2^72222073 is an apocalyptic number.

It is an amenable number.

72222073 is a deficient number, since it is larger than the sum of its proper divisors (17821127).

72222073 is a wasteful number, since it uses less digits than its factorization.

72222073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937967.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 72222073 is about 8498.3570765178. The cubic root of 72222073 is about 416.4440390076. Note that the first 3 decimals are identical.

The spelling of 72222073 in words is "seventy-two million, two hundred twenty-two thousand, seventy-three".