71763420 has 48 divisors (see below), whose sum is σ = 202799520. Its totient is φ = 18959616.

The previous prime is 71763403. The next prime is 71763451. The reversal of 71763420 is 2436717.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1054 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (4224990).

Almost surely, 2^71763420 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 71763420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101399760).

71763420 is an abundant number, since it is smaller than the sum of its proper divisors (131036100).

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

71763420 is a wasteful number, since it uses less digits than its factorization.

71763420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11094 (or 11092 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 71763420 is about 8471.3292935643. The cubic root of 71763420 is about 415.5606107123.

The spelling of 71763420 in words is "seventy-one million, seven hundred sixty-three thousand, four hundred twenty".