72296945 has 8 divisors (see below), whose sum is σ = 99150144. Its totient is φ = 49575024.

The previous prime is 72296941. The next prime is 72296963. The reversal of 72296945 is 54969227.

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 72296945 - 2² = 72296941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72296896 and 72296905.

It is not an unprimeable number, because it can be changed into a prime (72296941) 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, 1032779 + ... + 1032848.

It is an arithmetic number, because the mean of its divisors is an integer number (12393768).

Almost surely, 2^72296945 is an apocalyptic number.

It is an amenable number.

72296945 is a deficient number, since it is larger than the sum of its proper divisors (26853199).

72296945 is a wasteful number, since it uses less digits than its factorization.

72296945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065639.

The product of its digits is 272160, while the sum is 44.

The square root of 72296945 is about 8502.7610221622. The cubic root of 72296945 is about 416.5878972876.

The spelling of 72296945 in words is "seventy-two million, two hundred ninety-six thousand, nine hundred forty-five".