71634379 has 8 divisors (see below), whose sum is σ = 78464160. Its totient is φ = 65095296.

The previous prime is 71634371. The next prime is 71634383. The reversal of 71634379 is 97343617.

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 71634379 - 2³ = 71634371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71634371) 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, 72159 + ... + 73144.

It is an arithmetic number, because the mean of its divisors is an integer number (9808020).

Almost surely, 2^71634379 is an apocalyptic number.

71634379 is a deficient number, since it is larger than the sum of its proper divisors (6829781).

71634379 is a wasteful number, since it uses less digits than its factorization.

71634379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145349.

The product of its digits is 95256, while the sum is 40.

The square root of 71634379 is about 8463.7095295148. The cubic root of 71634379 is about 415.3113819252.

The spelling of 71634379 in words is "seventy-one million, six hundred thirty-four thousand, three hundred seventy-nine".