71922667 has 2 divisors, whose sum is σ = 71922668. Its totient is φ = 71922666.

The previous prime is 71922647. The next prime is 71922701. The reversal of 71922667 is 76622917.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71922667 is a prime.

It is not a weakly prime, because it can be changed into another prime (71922637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35961333 + 35961334.

It is an arithmetic number, because the mean of its divisors is an integer number (35961334).

Almost surely, 2^71922667 is an apocalyptic number.

71922667 is a deficient number, since it is larger than the sum of its proper divisors (1).

71922667 is an equidigital number, since it uses as much as digits as its factorization.

71922667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 71922667 is about 8480.7232592509. The cubic root of 71922667 is about 415.8677676215.

The spelling of 71922667 in words is "seventy-one million, nine hundred twenty-two thousand, six hundred sixty-seven".