71920850 has 12 divisors (see below), whose sum is σ = 133772874. Its totient is φ = 28768320.

The previous prime is 71920843. The next prime is 71920853. The reversal of 71920850 is 5802917.

It can be written as a sum of positive squares in 3 ways, for example, as 61763881 + 10156969 = 7859^2 + 3187^2 .

It is not an unprimeable number, because it can be changed into a prime (71920853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 719159 + ... + 719258.

Almost surely, 2^71920850 is an apocalyptic number.

71920850 is a deficient number, since it is larger than the sum of its proper divisors (61852024).

71920850 is a wasteful number, since it uses less digits than its factorization.

71920850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438429 (or 1438424 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 71920850 is about 8480.6161332771. The cubic root of 71920850 is about 415.8642655355.

The spelling of 71920850 in words is "seventy-one million, nine hundred twenty thousand, eight hundred fifty".