72244877 has 2 divisors, whose sum is σ = 72244878. Its totient is φ = 72244876.

The previous prime is 72244871. The next prime is 72244903. The reversal of 72244877 is 77844227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71048041 + 1196836 = 8429^2 + 1094^2 .

It is a cyclic number.

It is not a de Polignac number, because 72244877 - 2⁶ = 72244813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72244871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36122438 + 36122439.

It is an arithmetic number, because the mean of its divisors is an integer number (36122439).

Almost surely, 2^72244877 is an apocalyptic number.

It is an amenable number.

72244877 is a deficient number, since it is larger than the sum of its proper divisors (1).

72244877 is an equidigital number, since it uses as much as digits as its factorization.

72244877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 175616, while the sum is 41.

The square root of 72244877 is about 8499.6986417167. The cubic root of 72244877 is about 416.4878649006.

The spelling of 72244877 in words is "seventy-two million, two hundred forty-four thousand, eight hundred seventy-seven".