71423805 has 16 divisors (see below), whose sum is σ = 115390080. Its totient is φ = 37722048.

The previous prime is 71423791. The next prime is 71423813. The reversal of 71423805 is 50832417.

It is not a de Polignac number, because 71423805 - 2⁴ = 71423789 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21570 + ... + 24659.

It is an arithmetic number, because the mean of its divisors is an integer number (7211880).

Almost surely, 2^71423805 is an apocalyptic number.

It is an amenable number.

71423805 is a deficient number, since it is larger than the sum of its proper divisors (43966275).

71423805 is a wasteful number, since it uses less digits than its factorization.

71423805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46340.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 71423805 is about 8451.2605568637. The cubic root of 71423805 is about 414.9040374237.

The spelling of 71423805 in words is "seventy-one million, four hundred twenty-three thousand, eight hundred five".