71423423 has 2 divisors, whose sum is σ = 71423424. Its totient is φ = 71423422.

The previous prime is 71423381. The next prime is 71423461. The reversal of 71423423 is 32432417.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71423423 - 2⁸ = 71423167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71423392 and 71423401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71423323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35711711 + 35711712.

It is an arithmetic number, because the mean of its divisors is an integer number (35711712).

Almost surely, 2^71423423 is an apocalyptic number.

71423423 is a deficient number, since it is larger than the sum of its proper divisors (1).

71423423 is an equidigital number, since it uses as much as digits as its factorization.

71423423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 26.

The square root of 71423423 is about 8451.2379566546. The cubic root of 71423423 is about 414.9032977375.

The spelling of 71423423 in words is "seventy-one million, four hundred twenty-three thousand, four hundred twenty-three".