72802709 has 8 divisors (see below), whose sum is σ = 83286528. Its totient is φ = 62339760.

The previous prime is 72802679. The next prime is 72802727. The reversal of 72802709 is 90720827.

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

It is a de Polignac number, because none of the positive numbers 2^k-72802709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72802739) 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, 3164 + ... + 12474.

It is an arithmetic number, because the mean of its divisors is an integer number (10410816).

Almost surely, 2^72802709 is an apocalyptic number.

It is an amenable number.

72802709 is a deficient number, since it is larger than the sum of its proper divisors (10483819).

72802709 is a wasteful number, since it uses less digits than its factorization.

72802709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10435.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 72802709 is about 8532.4503514524. The cubic root of 72802709 is about 417.5570749179.

The spelling of 72802709 in words is "seventy-two million, eight hundred two thousand, seven hundred nine".