71976852 has 36 divisors (see below), whose sum is σ = 182378196. Its totient is φ = 23934720.

The previous prime is 71976851. The next prime is 71976857. The reversal of 71976852 is 25867917.

It can be written as a sum of positive squares in 2 ways, for example, as 8678916 + 63297936 = 2946^2 + 7956^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 71976798 and 71976807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71976851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14428 + ... + 18764.

It is an arithmetic number, because the mean of its divisors is an integer number (5066061).

Almost surely, 2^71976852 is an apocalyptic number.

It is an amenable number.

71976852 is an abundant number, since it is smaller than the sum of its proper divisors (110401344).

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

71976852 is a wasteful number, since it uses less digits than its factorization.

71976852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808 (or 4803 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 71976852 is about 8483.9172556078. The cubic root of 71976852 is about 415.9721767018.

The spelling of 71976852 in words is "seventy-one million, nine hundred seventy-six thousand, eight hundred fifty-two".