72344485 has 4 divisors (see below), whose sum is σ = 86813388. Its totient is φ = 57875584.

The previous prime is 72344479. The next prime is 72344491. The reversal of 72344485 is 58444327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58444327 = 1151 ⋅50777.

It is an interprime number because it is at equal distance from previous prime (72344479) and next prime (72344491).

It can be written as a sum of positive squares in 2 ways, for example, as 14493249 + 57851236 = 3807^2 + 7606^2 .

It is a cyclic number.

It is not a de Polignac number, because 72344485 - 2³ = 72344477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7234444 + ... + 7234453.

It is an arithmetic number, because the mean of its divisors is an integer number (21703347).

Almost surely, 2^72344485 is an apocalyptic number.

It is an amenable number.

72344485 is a deficient number, since it is larger than the sum of its proper divisors (14468903).

72344485 is a wasteful number, since it uses less digits than its factorization.

72344485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14468902.

The product of its digits is 107520, while the sum is 37.

The square root of 72344485 is about 8505.5561252631. The cubic root of 72344485 is about 416.6791886015.

The spelling of 72344485 in words is "seventy-two million, three hundred forty-four thousand, four hundred eighty-five".