71324870 has 8 divisors (see below), whose sum is σ = 128384784. Its totient is φ = 28529944.

The previous prime is 71324861. The next prime is 71324881. The reversal of 71324870 is 7842317.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×71324870⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566234 + ... + 3566253.

It is an arithmetic number, because the mean of its divisors is an integer number (16048098).

Almost surely, 2^71324870 is an apocalyptic number.

71324870 is a deficient number, since it is larger than the sum of its proper divisors (57059914).

71324870 is a wasteful number, since it uses less digits than its factorization.

71324870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7132494.

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

The square root of 71324870 is about 8445.4052596663. The cubic root of 71324870 is about 414.7123763066.

The spelling of 71324870 in words is "seventy-one million, three hundred twenty-four thousand, eight hundred seventy".