72773465 has 8 divisors (see below), whose sum is σ = 87589320. Its totient is φ = 58044672.

The previous prime is 72773443. The next prime is 72773473. The reversal of 72773465 is 56437727.

It can be written as a sum of positive squares in 4 ways, for example, as 913936 + 71859529 = 956^2 + 8477^2 .

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-72773465 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19910 + ... + 23279.

It is an arithmetic number, because the mean of its divisors is an integer number (10948665).

Almost surely, 2^72773465 is an apocalyptic number.

It is an amenable number.

72773465 is a deficient number, since it is larger than the sum of its proper divisors (14815855).

72773465 is a wasteful number, since it uses less digits than its factorization.

72773465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43531.

The product of its digits is 246960, while the sum is 41.

The square root of 72773465 is about 8530.7364863768. The cubic root of 72773465 is about 417.5011581595.

The spelling of 72773465 in words is "seventy-two million, seven hundred seventy-three thousand, four hundred sixty-five".