71804000 has 96 divisors (see below), whose sum is σ = 182800800. Its totient is φ = 27686400.

The previous prime is 71803961. The next prime is 71804027. The reversal of 71804000 is 40817.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115691 + ... + 116309.

It is an arithmetic number, because the mean of its divisors is an integer number (1904175).

Almost surely, 2^71804000 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 71804000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91400400).

71804000 is an abundant number, since it is smaller than the sum of its proper divisors (110996800).

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

71804000 is a wasteful number, since it uses less digits than its factorization.

71804000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 71804000 is about 8473.7240927469. The cubic root of 71804000 is about 415.6389248543.

Adding to 71804000 its reverse (40817), we get a palindrome (71844817).

The spelling of 71804000 in words is "seventy-one million, eight hundred four thousand".