71090078 has 8 divisors (see below), whose sum is σ = 110312280. Its totient is φ = 34319320.

The previous prime is 71090069. The next prime is 71090087. The reversal of 71090078 is 87009017.

It is an interprime number because it is at equal distance from previous prime (71090069) and next prime (71090087).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612788 + ... + 612903.

It is an arithmetic number, because the mean of its divisors is an integer number (13789035).

Almost surely, 2^71090078 is an apocalyptic number.

71090078 is a deficient number, since it is larger than the sum of its proper divisors (39222202).

71090078 is a wasteful number, since it uses less digits than its factorization.

71090078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225722.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 71090078 is about 8431.4932248090. The cubic root of 71090078 is about 414.2568167036.

The spelling of 71090078 in words is "seventy-one million, ninety thousand, seventy-eight".