72896422 has 4 divisors (see below), whose sum is σ = 109344636. Its totient is φ = 36448210.

The previous prime is 72896419. The next prime is 72896423. The reversal of 72896422 is 22469827.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72896423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18224104 + ... + 18224107.

It is an arithmetic number, because the mean of its divisors is an integer number (27336159).

Almost surely, 2^72896422 is an apocalyptic number.

72896422 is a deficient number, since it is larger than the sum of its proper divisors (36448214).

72896422 is a wasteful number, since it uses less digits than its factorization.

72896422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36448213.

The product of its digits is 96768, while the sum is 40.

The square root of 72896422 is about 8537.9401497082. The cubic root of 72896422 is about 417.7361605080.

The spelling of 72896422 in words is "seventy-two million, eight hundred ninety-six thousand, four hundred twenty-two".