71996310 has 64 divisors (see below), whose sum is σ = 194040000. Its totient is φ = 18994176.

The previous prime is 71996297. The next prime is 71996317. The reversal of 71996310 is 1369917.

71996310 is a `hidden beast` number, since 7 + 19 + 9 + 631 + 0 = 666.

It is a super-2 number, since 2×71996310² = 10366937307232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71996317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24816 + ... + 27564.

It is an arithmetic number, because the mean of its divisors is an integer number (3031875).

Almost surely, 2^71996310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71996310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97020000).

71996310 is an abundant number, since it is smaller than the sum of its proper divisors (122043690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71996310 is a wasteful number, since it uses less digits than its factorization.

71996310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862 (or 2856 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 71996310 is about 8485.0639361174. The cubic root of 71996310 is about 416.0096575359.

The spelling of 71996310 in words is "seventy-one million, nine hundred ninety-six thousand, three hundred ten".