71398008 has 48 divisors (see below), whose sum is σ = 210951000. Its totient is φ = 21635520.

The previous prime is 71397973. The next prime is 71398009. The reversal of 71398008 is 80089317.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71398009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44283 + ... + 45866.

Almost surely, 2^71398008 is an apocalyptic number.

It is an amenable number.

71398008 is an abundant number, since it is smaller than the sum of its proper divisors (139552992).

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

71398008 is a wasteful number, since it uses less digits than its factorization.

71398008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90172 (or 90165 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 71398008 is about 8449.7341970029. The cubic root of 71398008 is about 414.8540794379.

The spelling of 71398008 in words is "seventy-one million, three hundred ninety-eight thousand, eight".