71760020 has 24 divisors (see below), whose sum is σ = 154770504. Its totient is φ = 27927936.

The previous prime is 71760019. The next prime is 71760047. The reversal of 71760020 is 2006717.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3928324 + 67831696 = 1982^2 + 8236^2 .

It is a congruent number.

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, 47747 + ... + 49226.

It is an arithmetic number, because the mean of its divisors is an integer number (6448771).

Almost surely, 2^71760020 is an apocalyptic number.

It is an amenable number.

71760020 is an abundant number, since it is smaller than the sum of its proper divisors (83010484).

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

71760020 is a wasteful number, since it uses less digits than its factorization.

71760020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97019 (or 97017 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 71760020 is about 8471.1286142993. The cubic root of 71760020 is about 415.5540478125.

Adding to 71760020 its reverse (2006717), we get a palindrome (73766737).

The spelling of 71760020 in words is "seventy-one million, seven hundred sixty thousand, twenty".