71630000 has 200 divisors, whose sum is σ = 203372400. Its totient is φ = 24192000.

The previous prime is 71629997. The next prime is 71630033. The reversal of 71630000 is 3617.

It is a tau number, because it is divible by the number of its divisors (200).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2469986 + ... + 2470014.

It is an arithmetic number, because the mean of its divisors is an integer number (1016862).

Almost surely, 2^71630000 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 71630000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101686200).

71630000 is an abundant number, since it is smaller than the sum of its proper divisors (131742400).

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

71630000 is a wasteful number, since it uses less digits than its factorization.

71630000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 71630000 is about 8463.4508328459. The cubic root of 71630000 is about 415.3029191097.

Adding to 71630000 its reverse (3617), we get a palindrome (71633617).

The spelling of 71630000 in words is "seventy-one million, six hundred thirty thousand".