71026090 has 8 divisors (see below), whose sum is σ = 127846980. Its totient is φ = 28410432.

The previous prime is 71026049. The next prime is 71026099. The reversal of 71026090 is 9062017.

It can be written as a sum of positive squares in 2 ways, for example, as 69405561 + 1620529 = 8331^2 + 1273^2 .

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

It is not an unprimeable number, because it can be changed into a prime (71026099) 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, 3551295 + ... + 3551314.

Almost surely, 2^71026090 is an apocalyptic number.

71026090 is a deficient number, since it is larger than the sum of its proper divisors (56820890).

71026090 is a wasteful number, since it uses less digits than its factorization.

71026090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7102616.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 71026090 is about 8427.6977876523. The cubic root of 71026090 is about 414.1324888882.

The spelling of 71026090 in words is "seventy-one million, twenty-six thousand, ninety".