72943590 has 16 divisors (see below), whose sum is σ = 175064688. Its totient is φ = 19451616.

The previous prime is 72943531. The next prime is 72943597. The reversal of 72943590 is 9534927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72943597) 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 in 7 ways as a sum of consecutive naturals, for example, 1215697 + ... + 1215756.

It is an arithmetic number, because the mean of its divisors is an integer number (10941543).

Almost surely, 2^72943590 is an apocalyptic number.

72943590 is an abundant number, since it is smaller than the sum of its proper divisors (102121098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72943590 is a wasteful number, since it uses less digits than its factorization.

72943590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431463.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 72943590 is about 8540.7019617828. The cubic root of 72943590 is about 417.8262405165.

The spelling of 72943590 in words is "seventy-two million, nine hundred forty-three thousand, five hundred ninety".