71220982 has 8 divisors (see below), whose sum is σ = 122093136. Its totient is φ = 30523272.

The previous prime is 71220971. The next prime is 71220997. The reversal of 71220982 is 28902217.

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

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, 2543593 + ... + 2543620.

It is an arithmetic number, because the mean of its divisors is an integer number (15261642).

Almost surely, 2^71220982 is an apocalyptic number.

71220982 is a deficient number, since it is larger than the sum of its proper divisors (50872154).

71220982 is a wasteful number, since it uses less digits than its factorization.

71220982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087222.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 71220982 is about 8439.2524550460. The cubic root of 71220982 is about 414.5109291626.

The spelling of 71220982 in words is "seventy-one million, two hundred twenty thousand, nine hundred eighty-two".