72771003 has 6 divisors (see below), whose sum is σ = 105113684. Its totient is φ = 48513996.

The previous prime is 72771001. The next prime is 72771019. The reversal of 72771003 is 30017727.

It is not a de Polignac number, because 72771003 - 2¹ = 72771001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72771001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4042825 + ... + 4042842.

Almost surely, 2^72771003 is an apocalyptic number.

72771003 is a deficient number, since it is larger than the sum of its proper divisors (32342681).

72771003 is a wasteful number, since it uses less digits than its factorization.

72771003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8085673 (or 8085670 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 27.

The square root of 72771003 is about 8530.5921834302. The cubic root of 72771003 is about 417.4964499441.

The spelling of 72771003 in words is "seventy-two million, seven hundred seventy-one thousand, three".