71449982 has 4 divisors (see below), whose sum is σ = 107174976. Its totient is φ = 35724990.

The previous prime is 71449979. The next prime is 71450033. The reversal of 71449982 is 28994417.

It is a semiprime because it is the product of two primes.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17862494 + ... + 17862497.

It is an arithmetic number, because the mean of its divisors is an integer number (26793744).

Almost surely, 2^71449982 is an apocalyptic number.

71449982 is a deficient number, since it is larger than the sum of its proper divisors (35724994).

71449982 is a wasteful number, since it uses less digits than its factorization.

71449982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35724993.

The product of its digits is 145152, while the sum is 44.

The square root of 71449982 is about 8452.8091188669. The cubic root of 71449982 is about 414.9547190156.

The spelling of 71449982 in words is "seventy-one million, four hundred forty-nine thousand, nine hundred eighty-two".