72485071 has 6 divisors (see below), whose sum is σ = 73316672. Its totient is φ = 71662800.

The previous prime is 72485047. The next prime is 72485087. The reversal of 72485071 is 17058427.

It is a happy number.

It is not a de Polignac number, because 72485071 - 2¹¹ = 72483023 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 (72485011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3346 + ... + 12496.

Almost surely, 2^72485071 is an apocalyptic number.

72485071 is a deficient number, since it is larger than the sum of its proper divisors (831601).

72485071 is an frugal number, since it uses more digits than its factorization.

72485071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9329 (or 9240 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 72485071 is about 8513.8164767629. The cubic root of 72485071 is about 416.9489228501.

The spelling of 72485071 in words is "seventy-two million, four hundred eighty-five thousand, seventy-one".