72593293 has 4 divisors (see below), whose sum is σ = 75096540. Its totient is φ = 70090048.

The previous prime is 72593273. The next prime is 72593321. The reversal of 72593293 is 39239527.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53904964 + 18688329 = 7342^2 + 4323^2 .

It is a cyclic number.

It is not a de Polignac number, because 72593293 - 2²¹ = 70496141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72593263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251580 + ... + 1251637.

It is an arithmetic number, because the mean of its divisors is an integer number (18774135).

Almost surely, 2^72593293 is an apocalyptic number.

It is an amenable number.

72593293 is a deficient number, since it is larger than the sum of its proper divisors (2503247).

72593293 is a wasteful number, since it uses less digits than its factorization.

72593293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503246.

The product of its digits is 102060, while the sum is 40.

The square root of 72593293 is about 8520.1697753038. The cubic root of 72593293 is about 417.1563246764.

The spelling of 72593293 in words is "seventy-two million, five hundred ninety-three thousand, two hundred ninety-three".