71364890 has 8 divisors (see below), whose sum is σ = 128456820. Its totient is φ = 28545952.

The previous prime is 71364863. The next prime is 71364899. The reversal of 71364890 is 9846317.

It can be written as a sum of positive squares in 2 ways, for example, as 70677649 + 687241 = 8407^2 + 829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71364899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3568235 + ... + 3568254.

Almost surely, 2^71364890 is an apocalyptic number.

71364890 is a deficient number, since it is larger than the sum of its proper divisors (57091930).

71364890 is a wasteful number, since it uses less digits than its factorization.

71364890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7136496.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 71364890 is about 8447.7742630826. The cubic root of 71364890 is about 414.7899260969.

The spelling of 71364890 in words is "seventy-one million, three hundred sixty-four thousand, eight hundred ninety".