72474773 has 12 divisors (see below), whose sum is σ = 84788640. Its totient is φ = 61766712.

The previous prime is 72474769. The next prime is 72474841. The reversal of 72474773 is 37747427.

It is not a de Polignac number, because 72474773 - 2² = 72474769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72474773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72474713) 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 11 ways as a sum of consecutive naturals, for example, 4640 + ... + 12902.

It is an arithmetic number, because the mean of its divisors is an integer number (7065720).

Almost surely, 2^72474773 is an apocalyptic number.

It is an amenable number.

72474773 is a deficient number, since it is larger than the sum of its proper divisors (12313867).

72474773 is a wasteful number, since it uses less digits than its factorization.

72474773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8456 (or 8449 counting only the distinct ones).

The product of its digits is 230496, while the sum is 41.

The square root of 72474773 is about 8513.2116736282. The cubic root of 72474773 is about 416.9291765156.

The spelling of 72474773 in words is "seventy-two million, four hundred seventy-four thousand, seven hundred seventy-three".