71367890 has 32 divisors (see below), whose sum is σ = 144668160. Its totient is φ = 25113600.

The previous prime is 71367841. The next prime is 71367893. The reversal of 71367890 is 9876317.

It is not an unprimeable number, because it can be changed into a prime (71367893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7055 + ... + 13874.

It is an arithmetic number, because the mean of its divisors is an integer number (4520880).

Almost surely, 2^71367890 is an apocalyptic number.

71367890 is an abundant number, since it is smaller than the sum of its proper divisors (73300270).

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

71367890 is a wasteful number, since it uses less digits than its factorization.

71367890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20978.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 71367890 is about 8447.9518227793. The cubic root of 71367890 is about 414.7957382563.

The spelling of 71367890 in words is "seventy-one million, three hundred sixty-seven thousand, eight hundred ninety".