72297322 has 8 divisors (see below), whose sum is σ = 110223972. Its totient is φ = 35556000.

The previous prime is 72297317. The next prime is 72297331. The reversal of 72297322 is 22379227.

It can be written as a sum of positive squares in 2 ways, for example, as 50851161 + 21446161 = 7131^2 + 4631^2 .

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

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, 296179 + ... + 296422.

Almost surely, 2^72297322 is an apocalyptic number.

72297322 is a deficient number, since it is larger than the sum of its proper divisors (37926650).

72297322 is a wasteful number, since it uses less digits than its factorization.

72297322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592664.

The product of its digits is 21168, while the sum is 34.

The square root of 72297322 is about 8502.7831914027. The cubic root of 72297322 is about 416.5886214001.

The spelling of 72297322 in words is "seventy-two million, two hundred ninety-seven thousand, three hundred twenty-two".