71063400 has 96 divisors (see below), whose sum is σ = 233288640. Its totient is φ = 17832960.

The previous prime is 71063393. The next prime is 71063411. The reversal of 71063400 is 436017.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6717 + ... + 13683.

It is an arithmetic number, because the mean of its divisors is an integer number (2430090).

Almost surely, 2^71063400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71063400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116644320).

71063400 is an abundant number, since it is smaller than the sum of its proper divisors (162225240).

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

71063400 is a wasteful number, since it uses less digits than its factorization.

71063400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7003 (or 6994 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 71063400 is about 8429.9110315590. The cubic root of 71063400 is about 414.2049907836.

Adding to 71063400 its reverse (436017), we get a palindrome (71499417).

The spelling of 71063400 in words is "seventy-one million, sixty-three thousand, four hundred".