72294773 has 8 divisors (see below), whose sum is σ = 76172928. Its totient is φ = 68477904.

The previous prime is 72294757. The next prime is 72294787. The reversal of 72294773 is 37749227.

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 72294773 - 2⁴ = 72294757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72294773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72294713) 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, 12890 + ... + 17627.

It is an arithmetic number, because the mean of its divisors is an integer number (9521616).

Almost surely, 2^72294773 is an apocalyptic number.

It is an amenable number.

72294773 is a deficient number, since it is larger than the sum of its proper divisors (3878155).

72294773 is a wasteful number, since it uses less digits than its factorization.

72294773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30643.

The product of its digits is 148176, while the sum is 41.

The square root of 72294773 is about 8502.6332979848. The cubic root of 72294773 is about 416.5837254287.

The spelling of 72294773 in words is "seventy-two million, two hundred ninety-four thousand, seven hundred seventy-three".