71966782 has 8 divisors (see below), whose sum is σ = 108612936. Its totient is φ = 35762472.

The previous prime is 71966761. The next prime is 71966819. The reversal of 71966782 is 28766917.

It is a happy number.

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

It is a super-2 number, since 2×71966782² = 10358435422871048, which contains 22 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, 110053 + ... + 110704.

It is an arithmetic number, because the mean of its divisors is an integer number (13576617).

Almost surely, 2^71966782 is an apocalyptic number.

71966782 is a deficient number, since it is larger than the sum of its proper divisors (36646154).

71966782 is a wasteful number, since it uses less digits than its factorization.

71966782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220922.

The product of its digits is 254016, while the sum is 46.

The square root of 71966782 is about 8483.3237589992. The cubic root of 71966782 is about 415.9527767833.

The spelling of 71966782 in words is "seventy-one million, nine hundred sixty-six thousand, seven hundred eighty-two".