72973061 has 8 divisors (see below), whose sum is σ = 88303680. Its totient is φ = 58868928.

The previous prime is 72973049. The next prime is 72973067. The reversal of 72973061 is 16037927.

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

It is a cyclic number.

It is not a de Polignac number, because 72973061 - 2¹⁴ = 72956677 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 (72973067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306491 + ... + 306728.

It is an arithmetic number, because the mean of its divisors is an integer number (11037960).

Almost surely, 2^72973061 is an apocalyptic number.

It is an amenable number.

72973061 is a deficient number, since it is larger than the sum of its proper divisors (15330619).

72973061 is a wasteful number, since it uses less digits than its factorization.

72973061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613243.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 72973061 is about 8542.4271141169. The cubic root of 72973061 is about 417.8825036241.

The spelling of 72973061 in words is "seventy-two million, nine hundred seventy-three thousand, sixty-one".