72873767 has 2 divisors, whose sum is σ = 72873768. Its totient is φ = 72873766.

The previous prime is 72873763. The next prime is 72873799. The reversal of 72873767 is 76737827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72873767 - 2² = 72873763 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72873763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36436883 + 36436884.

It is an arithmetic number, because the mean of its divisors is an integer number (36436884).

Almost surely, 2^72873767 is an apocalyptic number.

72873767 is a deficient number, since it is larger than the sum of its proper divisors (1).

72873767 is an equidigital number, since it uses as much as digits as its factorization.

72873767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691488, while the sum is 47.

The square root of 72873767 is about 8536.6133214525. The cubic root of 72873767 is about 417.6928808654.

The spelling of 72873767 in words is "seventy-two million, eight hundred seventy-three thousand, seven hundred sixty-seven".