72876505 has 32 divisors (see below), whose sum is σ = 99025920. Its totient is φ = 51114240.

The previous prime is 72876491. The next prime is 72876509. The reversal of 72876505 is 50567827.

It is not a de Polignac number, because 72876505 - 2²¹ = 70779353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72876509) 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, 118579 + ... + 119191.

It is an arithmetic number, because the mean of its divisors is an integer number (3094560).

Almost surely, 2^72876505 is an apocalyptic number.

It is an amenable number.

72876505 is a deficient number, since it is larger than the sum of its proper divisors (26149415).

72876505 is a wasteful number, since it uses less digits than its factorization.

72876505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 72876505 is about 8536.7736879924. The cubic root of 72876505 is about 417.6981119604.

The spelling of 72876505 in words is "seventy-two million, eight hundred seventy-six thousand, five hundred five".