71504986 has 8 divisors (see below), whose sum is σ = 122580000. Its totient is φ = 30644988.

The previous prime is 71504977. The next prime is 71504987. The reversal of 71504986 is 68940517.

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

It is a super-2 number, since 2×71504986² = 10225926045720392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71504987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553736 + ... + 2553763.

It is an arithmetic number, because the mean of its divisors is an integer number (15322500).

Almost surely, 2^71504986 is an apocalyptic number.

71504986 is a deficient number, since it is larger than the sum of its proper divisors (51075014).

71504986 is a wasteful number, since it uses less digits than its factorization.

71504986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107508.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 71504986 is about 8456.0620858648. The cubic root of 71504986 is about 415.0611725763.

The spelling of 71504986 in words is "seventy-one million, five hundred four thousand, nine hundred eighty-six".