71760813 has 8 divisors (see below), whose sum is σ = 95748000. Its totient is φ = 47807088.

The previous prime is 71760811. The next prime is 71760817. The reversal of 71760813 is 31806717.

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

It is not a de Polignac number, because 71760813 - 2¹ = 71760811 is a prime.

It is a super-2 number, since 2×71760813² = 10299228564841938, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71760811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2838 + ... + 12311.

It is an arithmetic number, because the mean of its divisors is an integer number (11968500).

Almost surely, 2^71760813 is an apocalyptic number.

It is an amenable number.

71760813 is a deficient number, since it is larger than the sum of its proper divisors (23987187).

71760813 is a wasteful number, since it uses less digits than its factorization.

71760813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16731.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 71760813 is about 8471.1754202118. The cubic root of 71760813 is about 415.5555785309. Note that the first 4 decimals are identical.

The spelling of 71760813 in words is "seventy-one million, seven hundred sixty thousand, eight hundred thirteen".