71567423 has 2 divisors, whose sum is σ = 71567424. Its totient is φ = 71567422.

The previous prime is 71567411. The next prime is 71567453. The reversal of 71567423 is 32476517.

It is a weak prime.

It is an emirp because it is prime and its reverse (32476517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71567423 - 2⁴ = 71567407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71567453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35783711 + 35783712.

It is an arithmetic number, because the mean of its divisors is an integer number (35783712).

Almost surely, 2^71567423 is an apocalyptic number.

71567423 is a deficient number, since it is larger than the sum of its proper divisors (1).

71567423 is an equidigital number, since it uses as much as digits as its factorization.

71567423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 35.

The square root of 71567423 is about 8459.7531287857. The cubic root of 71567423 is about 415.1819456703.

The spelling of 71567423 in words is "seventy-one million, five hundred sixty-seven thousand, four hundred twenty-three".