72893481 has 12 divisors (see below), whose sum is σ = 102577392. Its totient is φ = 46037304.

The previous prime is 72893479. The next prime is 72893503. The reversal of 72893481 is 18439827.

It is not a de Polignac number, because 72893481 - 2¹ = 72893479 is a prime.

It is a super-2 number, since 2×72893481² = 10626919144594722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72893411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32571 + ... + 34736.

It is an arithmetic number, because the mean of its divisors is an integer number (8548116).

Almost surely, 2^72893481 is an apocalyptic number.

It is an amenable number.

72893481 is a deficient number, since it is larger than the sum of its proper divisors (29683911).

72893481 is a wasteful number, since it uses less digits than its factorization.

72893481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67348 (or 67329 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 72893481 is about 8537.7679167333. The cubic root of 72893481 is about 417.7305425891.

The spelling of 72893481 in words is "seventy-two million, eight hundred ninety-three thousand, four hundred eighty-one".