71807023 has 16 divisors (see below), whose sum is σ = 77783040. Its totient is φ = 66074400.

The previous prime is 71807017. The next prime is 71807041. The reversal of 71807023 is 32070817.

It is a happy number.

It is not a de Polignac number, because 71807023 - 2⁵ = 71806991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71806982 and 71807000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71807003) 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 15 ways as a sum of consecutive naturals, for example, 170353 + ... + 170773.

It is an arithmetic number, because the mean of its divisors is an integer number (4861440).

Almost surely, 2^71807023 is an apocalyptic number.

71807023 is a deficient number, since it is larger than the sum of its proper divisors (5976017).

71807023 is a wasteful number, since it uses less digits than its factorization.

71807023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

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

The square root of 71807023 is about 8473.9024658064. The cubic root of 71807023 is about 415.6447576716.

The spelling of 71807023 in words is "seventy-one million, eight hundred seven thousand, twenty-three".