71413879 has 8 divisors (see below), whose sum is σ = 72135360. Its totient is φ = 70696416.

The previous prime is 71413877. The next prime is 71413883. The reversal of 71413879 is 97831417.

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

It is a cyclic number.

It is not a de Polignac number, because 71413879 - 2¹ = 71413877 is a prime.

It is a super-2 number, since 2×71413879² = 10199884227653282, 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 (71413871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44322 + ... + 45904.

It is an arithmetic number, because the mean of its divisors is an integer number (9016920).

Almost surely, 2^71413879 is an apocalyptic number.

71413879 is a deficient number, since it is larger than the sum of its proper divisors (721481).

71413879 is a wasteful number, since it uses less digits than its factorization.

71413879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009.

The product of its digits is 42336, while the sum is 40.

The square root of 71413879 is about 8450.6732867861. The cubic root of 71413879 is about 414.8848163425.

The spelling of 71413879 in words is "seventy-one million, four hundred thirteen thousand, eight hundred seventy-nine".