72841305 has 32 divisors (see below), whose sum is σ = 119775744. Its totient is φ = 37783296.

The previous prime is 72841303. The next prime is 72841309. The reversal of 72841305 is 50314827.

It is not a de Polignac number, because 72841305 - 2¹ = 72841303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72841303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195099 + ... + 195471.

It is an arithmetic number, because the mean of its divisors is an integer number (3742992).

Almost surely, 2^72841305 is an apocalyptic number.

It is an amenable number.

72841305 is a deficient number, since it is larger than the sum of its proper divisors (46934439).

72841305 is a wasteful number, since it uses less digits than its factorization.

72841305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 72841305 is about 8534.7117701771. The cubic root of 72841305 is about 417.6308504957.

The spelling of 72841305 in words is "seventy-two million, eight hundred forty-one thousand, three hundred five".