71905234 has 16 divisors (see below), whose sum is σ = 113770080. Its totient is φ = 33989760.

The previous prime is 71905231. The next prime is 71905261. The reversal of 71905234 is 43250917.

It is a junction number, because it is equal to n+sod(n) for n = 71905196 and 71905205.

It is not an unprimeable number, because it can be changed into a prime (71905231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19714 + ... + 23074.

It is an arithmetic number, because the mean of its divisors is an integer number (7110630).

Almost surely, 2^71905234 is an apocalyptic number.

71905234 is a deficient number, since it is larger than the sum of its proper divisors (41864846).

71905234 is a wasteful number, since it uses less digits than its factorization.

71905234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3945.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 71905234 is about 8479.6953954726. The cubic root of 71905234 is about 415.8341648232.

The spelling of 71905234 in words is "seventy-one million, nine hundred five thousand, two hundred thirty-four".