72842767 has 2 divisors, whose sum is σ = 72842768. Its totient is φ = 72842766.

The previous prime is 72842761. The next prime is 72842813. The reversal of 72842767 is 76724827.

It is a weak prime.

It is an emirp because it is prime and its reverse (76724827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72842767 - 2¹⁹ = 72318479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72842761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36421383 + 36421384.

It is an arithmetic number, because the mean of its divisors is an integer number (36421384).

Almost surely, 2^72842767 is an apocalyptic number.

72842767 is a deficient number, since it is larger than the sum of its proper divisors (1).

72842767 is an equidigital number, since it uses as much as digits as its factorization.

72842767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 263424, while the sum is 43.

The square root of 72842767 is about 8534.7974199743. The cubic root of 72842767 is about 417.6336445707.

The spelling of 72842767 in words is "seventy-two million, eight hundred forty-two thousand, seven hundred sixty-seven".