71326890 has 24 divisors (see below), whose sum is σ = 185450148. Its totient is φ = 19020480.

The previous prime is 71326889. The next prime is 71326897. The reversal of 71326890 is 9862317.

It can be written as a sum of positive squares in 2 ways, for example, as 70006689 + 1320201 = 8367^2 + 1149^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71326897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396171 + ... + 396350.

Almost surely, 2^71326890 is an apocalyptic number.

71326890 is an abundant number, since it is smaller than the sum of its proper divisors (114123258).

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

71326890 is a wasteful number, since it uses less digits than its factorization.

71326890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792534 (or 792531 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 71326890 is about 8445.5248504755. The cubic root of 71326890 is about 414.7162913089.

The spelling of 71326890 in words is "seventy-one million, three hundred twenty-six thousand, eight hundred ninety".