71879406 has 16 divisors (see below), whose sum is σ = 145784448. Its totient is φ = 23622200.

The previous prime is 71879399. The next prime is 71879407. The reversal of 71879406 is 60497817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71879407) by changing a digit.

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, 83940 + ... + 84791.

It is an arithmetic number, because the mean of its divisors is an integer number (9111528).

Almost surely, 2^71879406 is an apocalyptic number.

71879406 is an abundant number, since it is smaller than the sum of its proper divisors (73905042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71879406 is a wasteful number, since it uses less digits than its factorization.

71879406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168807.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 71879406 is about 8478.1723266280. The cubic root of 71879406 is about 415.7843703442.

The spelling of 71879406 in words is "seventy-one million, eight hundred seventy-nine thousand, four hundred six".