71930023 has 12 divisors (see below), whose sum is σ = 79269064. Its totient is φ = 65221200.

The previous prime is 71930003. The next prime is 71930071. The reversal of 71930023 is 32003917.

It is a de Polignac number, because none of the positive numbers 2^k-71930023 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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 71930023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71930003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88288 + ... + 89098.

Almost surely, 2^71930023 is an apocalyptic number.

71930023 is a deficient number, since it is larger than the sum of its proper divisors (7339041).

71930023 is a wasteful number, since it uses less digits than its factorization.

71930023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 71930023 is about 8481.1569375882. The cubic root of 71930023 is about 415.8819449740.

The spelling of 71930023 in words is "seventy-one million, nine hundred thirty thousand, twenty-three".