72837791 has 8 divisors (see below), whose sum is σ = 78650880. Its totient is φ = 67054752.

The previous prime is 72837769. The next prime is 72837797. The reversal of 72837791 is 19773827.

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 72837791 - 2⁶ = 72837727 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 (72837797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2336 + ... + 12293.

It is an arithmetic number, because the mean of its divisors is an integer number (9831360).

Almost surely, 2^72837791 is an apocalyptic number.

72837791 is a deficient number, since it is larger than the sum of its proper divisors (5813089).

72837791 is a wasteful number, since it uses less digits than its factorization.

72837791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15025.

The product of its digits is 148176, while the sum is 44.

The square root of 72837791 is about 8534.5059025113. The cubic root of 72837791 is about 417.6241346248.

The spelling of 72837791 in words is "seventy-two million, eight hundred thirty-seven thousand, seven hundred ninety-one".