71913934 has 4 divisors (see below), whose sum is σ = 107870904. Its totient is φ = 35956966.

The previous prime is 71913929. The next prime is 71913943. The reversal of 71913934 is 43931917.

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

It is a super-3 number, since 3×71913934³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 71913893 and 71913902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17978482 + ... + 17978485.

It is an arithmetic number, because the mean of its divisors is an integer number (26967726).

Almost surely, 2^71913934 is an apocalyptic number.

71913934 is a deficient number, since it is larger than the sum of its proper divisors (35956970).

71913934 is a wasteful number, since it uses less digits than its factorization.

71913934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35956969.

The product of its digits is 20412, while the sum is 37.

The square root of 71913934 is about 8480.2083700815. The cubic root of 71913934 is about 415.8509350968.

The spelling of 71913934 in words is "seventy-one million, nine hundred thirteen thousand, nine hundred thirty-four".