71742767 has 2 divisors, whose sum is σ = 71742768. Its totient is φ = 71742766.

The previous prime is 71742757. The next prime is 71742779. The reversal of 71742767 is 76724717.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71742767 - 2⁸ = 71742511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71742757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35871383 + 35871384.

It is an arithmetic number, because the mean of its divisors is an integer number (35871384).

Almost surely, 2^71742767 is an apocalyptic number.

71742767 is a deficient number, since it is larger than the sum of its proper divisors (1).

71742767 is an equidigital number, since it uses as much as digits as its factorization.

71742767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115248, while the sum is 41.

The square root of 71742767 is about 8470.1102117977. The cubic root of 71742767 is about 415.5207417616.

The spelling of 71742767 in words is "seventy-one million, seven hundred forty-two thousand, seven hundred sixty-seven".