71117434 has 16 divisors (see below), whose sum is σ = 108815616. Its totient is φ = 34851600.

The previous prime is 71117419. The next prime is 71117489. The reversal of 71117434 is 43471117.

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, 24319 + ... + 27085.

It is an arithmetic number, because the mean of its divisors is an integer number (6800976).

Almost surely, 2^71117434 is an apocalyptic number.

71117434 is a deficient number, since it is larger than the sum of its proper divisors (37698182).

71117434 is a wasteful number, since it uses less digits than its factorization.

71117434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021.

The product of its digits is 2352, while the sum is 28.

The square root of 71117434 is about 8433.1153199752. The cubic root of 71117434 is about 414.3099462753.

It can be divided in two parts, 711 and 17434, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 71117434 in words is "seventy-one million, one hundred seventeen thousand, four hundred thirty-four".