71383790 has 16 divisors (see below), whose sum is σ = 132922080. Its totient is φ = 27568800.

The previous prime is 71383783. The next prime is 71383801. The reversal of 71383790 is 9738317.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122786 + ... + 123365.

It is an arithmetic number, because the mean of its divisors is an integer number (8307630).

Almost surely, 2^71383790 is an apocalyptic number.

71383790 is a deficient number, since it is larger than the sum of its proper divisors (61538290).

71383790 is a wasteful number, since it uses less digits than its factorization.

71383790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246187.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 71383790 is about 8448.8928268738. The cubic root of 71383790 is about 414.8265399820.

The spelling of 71383790 in words is "seventy-one million, three hundred eighty-three thousand, seven hundred ninety".