71873679 has 4 divisors (see below), whose sum is σ = 95831576. Its totient is φ = 47915784.

The previous prime is 71873657. The next prime is 71873699. The reversal of 71873679 is 97637817.

It is a happy number.

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

It is not a de Polignac number, because 71873679 - 2¹³ = 71865487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71873699) 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, 11978944 + ... + 11978949.

It is an arithmetic number, because the mean of its divisors is an integer number (23957894).

Almost surely, 2^71873679 is an apocalyptic number.

71873679 is a deficient number, since it is larger than the sum of its proper divisors (23957897).

71873679 is a wasteful number, since it uses less digits than its factorization.

71873679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23957896.

The product of its digits is 444528, while the sum is 48.

The square root of 71873679 is about 8477.8345702190. The cubic root of 71873679 is about 415.7733274949.

The spelling of 71873679 in words is "seventy-one million, eight hundred seventy-three thousand, six hundred seventy-nine".