838968590 has 8 divisors (see below), whose sum is σ = 1510143480. Its totient is φ = 335587432.

The previous prime is 838968583. The next prime is 838968601. The reversal of 838968590 is 95869838.

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

It is a super-3 number, since 3×838968590³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 41948420 + ... + 41948439.

It is an arithmetic number, because the mean of its divisors is an integer number (188767935).

Almost surely, 2^838968590 is an apocalyptic number.

838968590 is a deficient number, since it is larger than the sum of its proper divisors (671174890).

838968590 is a wasteful number, since it uses less digits than its factorization.

838968590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83896866.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The square root of 838968590 is about 28964.9545140330. The cubic root of 838968590 is about 943.1524572013.

The spelling of 838968590 in words is "eight hundred thirty-eight million, nine hundred sixty-eight thousand, five hundred ninety".