71823470 has 32 divisors (see below), whose sum is σ = 137308608. Its totient is φ = 26956288.

The previous prime is 71823461. The next prime is 71823539. The reversal of 71823470 is 7432817.

It is a happy number.

It is a super-3 number, since 3×71823470³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109664 + ... + 110316.

It is an arithmetic number, because the mean of its divisors is an integer number (4290894).

Almost surely, 2^71823470 is an apocalyptic number.

71823470 is a deficient number, since it is larger than the sum of its proper divisors (65485138).

71823470 is a wasteful number, since it uses less digits than its factorization.

71823470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 71823470 is about 8474.8728604033. The cubic root of 71823470 is about 415.6764889572.

The spelling of 71823470 in words is "seventy-one million, eight hundred twenty-three thousand, four hundred seventy".