71198934 has 16 divisors (see below), whose sum is σ = 142774272. Its totient is φ = 23670248.

The previous prime is 71198923. The next prime is 71198969. The reversal of 71198934 is 43989117.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13194 + ... + 17789.

It is an arithmetic number, because the mean of its divisors is an integer number (8923392).

Almost surely, 2^71198934 is an apocalyptic number.

71198934 is an abundant number, since it is smaller than the sum of its proper divisors (71575338).

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

71198934 is a wasteful number, since it uses less digits than its factorization.

71198934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31371.

The product of its digits is 54432, while the sum is 42.

The square root of 71198934 is about 8437.9460770972. The cubic root of 71198934 is about 414.4681511312.

The spelling of 71198934 in words is "seventy-one million, one hundred ninety-eight thousand, nine hundred thirty-four".