71486449 has 8 divisors (see below), whose sum is σ = 73189760. Its totient is φ = 69800400.

The previous prime is 71486431. The next prime is 71486473. The reversal of 71486449 is 94468417.

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

It is a cyclic number.

It is not a de Polignac number, because 71486449 - 2¹¹ = 71484401 is a prime.

It is a super-2 number, since 2×71486449² = 10220624781259202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71486249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4264 + ... + 12694.

It is an arithmetic number, because the mean of its divisors is an integer number (9148720).

Almost surely, 2^71486449 is an apocalyptic number.

It is an amenable number.

71486449 is a deficient number, since it is larger than the sum of its proper divisors (1703311).

71486449 is a wasteful number, since it uses less digits than its factorization.

71486449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8631.

The product of its digits is 193536, while the sum is 43.

The square root of 71486449 is about 8454.9659372466. The cubic root of 71486449 is about 415.0253025653.

The spelling of 71486449 in words is "seventy-one million, four hundred eighty-six thousand, four hundred forty-nine".