72957485 has 4 divisors (see below), whose sum is σ = 87548988. Its totient is φ = 58365984.

The previous prime is 72957463. The next prime is 72957487. The reversal of 72957485 is 58475927.

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 47293129 + 25664356 = 6877^2 + 5066^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72957485 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72957487) 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, 7295744 + ... + 7295753.

It is an arithmetic number, because the mean of its divisors is an integer number (21887247).

Almost surely, 2^72957485 is an apocalyptic number.

It is an amenable number.

72957485 is a deficient number, since it is larger than the sum of its proper divisors (14591503).

72957485 is a wasteful number, since it uses less digits than its factorization.

72957485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14591502.

The product of its digits is 705600, while the sum is 47.

The square root of 72957485 is about 8541.5153807741. The cubic root of 72957485 is about 417.8527693589.

The spelling of 72957485 in words is "seventy-two million, nine hundred fifty-seven thousand, four hundred eighty-five".