72546805 has 8 divisors (see below), whose sum is σ = 89080992. Its totient is φ = 56687568.

The previous prime is 72546739. The next prime is 72546809. The reversal of 72546805 is 50864527.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72546805 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 (72546809) 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, 168499 + ... + 168928.

It is an arithmetic number, because the mean of its divisors is an integer number (11135124).

Almost surely, 2^72546805 is an apocalyptic number.

It is an amenable number.

72546805 is a deficient number, since it is larger than the sum of its proper divisors (16534187).

72546805 is a wasteful number, since it uses less digits than its factorization.

72546805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337475.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 72546805 is about 8517.4412237479. The cubic root of 72546805 is about 417.0672581179.

The spelling of 72546805 in words is "seventy-two million, five hundred forty-six thousand, eight hundred five".