71423405 has 8 divisors (see below), whose sum is σ = 86025984. Its totient is φ = 56926800.

The previous prime is 71423381. The next prime is 71423423. The reversal of 71423405 is 50432417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71423405 - 2¹⁰ = 71422381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25001 + ... + 27710.

It is an arithmetic number, because the mean of its divisors is an integer number (10753248).

Almost surely, 2^71423405 is an apocalyptic number.

It is an amenable number.

71423405 is a deficient number, since it is larger than the sum of its proper divisors (14602579).

71423405 is a wasteful number, since it uses less digits than its factorization.

71423405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52987.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 71423405 is about 8451.2368917218. The cubic root of 71423405 is about 414.9032628831.

The spelling of 71423405 in words is "seventy-one million, four hundred twenty-three thousand, four hundred five".