72265471 has 8 divisors (see below), whose sum is σ = 75533184. Its totient is φ = 69008280.

The previous prime is 72265441. The next prime is 72265481. The reversal of 72265471 is 17456227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72265471 - 2¹¹ = 72263423 is a prime.

It is a super-3 number, since 3×72265471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72265441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13620 + ... + 18166.

It is an arithmetic number, because the mean of its divisors is an integer number (9441648).

Almost surely, 2^72265471 is an apocalyptic number.

72265471 is a deficient number, since it is larger than the sum of its proper divisors (3267713).

72265471 is a wasteful number, since it uses less digits than its factorization.

72265471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5261.

The product of its digits is 23520, while the sum is 34.

The square root of 72265471 is about 8500.9100101107. The cubic root of 72265471 is about 416.5274355782.

The spelling of 72265471 in words is "seventy-two million, two hundred sixty-five thousand, four hundred seventy-one".