71004740 has 24 divisors (see below), whose sum is σ = 149688000. Its totient is φ = 28291808.

The previous prime is 71004727. The next prime is 71004763. The reversal of 71004740 is 4740017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490 + ... + 12009.

It is an arithmetic number, because the mean of its divisors is an integer number (6237000).

Almost surely, 2^71004740 is an apocalyptic number.

It is an amenable number.

71004740 is an abundant number, since it is smaller than the sum of its proper divisors (78683260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71004740 is a wasteful number, since it uses less digits than its factorization.

71004740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13771 (or 13769 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 71004740 is about 8426.4310357351. The cubic root of 71004740 is about 414.0909895148.

Adding to 71004740 its reverse (4740017), we get a palindrome (75744757).

The spelling of 71004740 in words is "seventy-one million, four thousand, seven hundred forty".