71814423 has 4 divisors (see below), whose sum is σ = 95752568. Its totient is φ = 47876280.

The previous prime is 71814403. The next prime is 71814427. The reversal of 71814423 is 32441817.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-71814423 is a prime.

It is a super-2 number, since 2×71814423² = 10314622701645858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71814427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11969068 + ... + 11969073.

It is an arithmetic number, because the mean of its divisors is an integer number (23938142).

Almost surely, 2^71814423 is an apocalyptic number.

71814423 is a deficient number, since it is larger than the sum of its proper divisors (23938145).

71814423 is a wasteful number, since it uses less digits than its factorization.

71814423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23938144.

The product of its digits is 5376, while the sum is 30.

The square root of 71814423 is about 8474.3390892742. The cubic root of 71814423 is about 415.6590351309.

The spelling of 71814423 in words is "seventy-one million, eight hundred fourteen thousand, four hundred twenty-three".