72745206 has 8 divisors (see below), whose sum is σ = 145490424. Its totient is φ = 24248400.

The previous prime is 72745201. The next prime is 72745213. The reversal of 72745206 is 60254727.

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

72745206 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72745201) 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 3 ways as a sum of consecutive naturals, for example, 6062095 + ... + 6062106.

It is an arithmetic number, because the mean of its divisors is an integer number (18186303).

Almost surely, 2^72745206 is an apocalyptic number.

72745206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72745206 is a wasteful number, since it uses less digits than its factorization.

72745206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12124206.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 72745206 is about 8529.0800207291. The cubic root of 72745206 is about 417.4471105627.

The spelling of 72745206 in words is "seventy-two million, seven hundred forty-five thousand, two hundred six".