72896245 has 8 divisors (see below), whose sum is σ = 88342200. Its totient is φ = 57739200.

The previous prime is 72896233. The next prime is 72896249. The reversal of 72896245 is 54269827.

It can be written as a sum of positive squares in 4 ways, for example, as 27279729 + 45616516 = 5223^2 + 6754^2 .

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

It is not a de Polignac number, because 72896245 - 2¹⁵ = 72863477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72896249) 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, 71670 + ... + 72679.

It is an arithmetic number, because the mean of its divisors is an integer number (11042775).

Almost surely, 2^72896245 is an apocalyptic number.

It is an amenable number.

72896245 is a deficient number, since it is larger than the sum of its proper divisors (15445955).

72896245 is a wasteful number, since it uses less digits than its factorization.

72896245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144455.

The product of its digits is 241920, while the sum is 43.

The square root of 72896245 is about 8537.9297842041. The cubic root of 72896245 is about 417.7358224057.

The spelling of 72896245 in words is "seventy-two million, eight hundred ninety-six thousand, two hundred forty-five".