72821935 has 8 divisors (see below), whose sum is σ = 87672816. Its totient is φ = 58066560.

The previous prime is 72821923. The next prime is 72821951. The reversal of 72821935 is 53912827.

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

It is not a de Polignac number, because 72821935 - 2⁹ = 72821423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72821894 and 72821903.

It is a congruent number.

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, 22186 + ... + 25255.

It is an arithmetic number, because the mean of its divisors is an integer number (10959102).

Almost surely, 2^72821935 is an apocalyptic number.

72821935 is a deficient number, since it is larger than the sum of its proper divisors (14850881).

72821935 is a wasteful number, since it uses less digits than its factorization.

72821935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47753.

The product of its digits is 30240, while the sum is 37.

The square root of 72821935 is about 8533.5769170964. The cubic root of 72821935 is about 417.5938283385.

The spelling of 72821935 in words is "seventy-two million, eight hundred twenty-one thousand, nine hundred thirty-five".