71634107 has 4 divisors (see below), whose sum is σ = 75847896. Its totient is φ = 67420320.

The previous prime is 71634091. The next prime is 71634133. The reversal of 71634107 is 70143617.

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

It is a cyclic number.

It is not a de Polignac number, because 71634107 - 2⁴ = 71634091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71634107.

It is not an unprimeable number, because it can be changed into a prime (71634187) 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, 2106869 + ... + 2106902.

It is an arithmetic number, because the mean of its divisors is an integer number (18961974).

Almost surely, 2^71634107 is an apocalyptic number.

71634107 is a deficient number, since it is larger than the sum of its proper divisors (4213789).

71634107 is a wasteful number, since it uses less digits than its factorization.

71634107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213788.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 71634107 is about 8463.6934608952. The cubic root of 71634107 is about 415.3108562706.

The spelling of 71634107 in words is "seventy-one million, six hundred thirty-four thousand, one hundred seven".