838993765 has 16 divisors (see below), whose sum is σ = 1054794240. Its totient is φ = 639840960.

The previous prime is 838993739. The next prime is 838993807. The reversal of 838993765 is 567399838.

It is not a de Polignac number, because 838993765 - 2⁵ = 838993733 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 30010 + ... + 50779.

It is an arithmetic number, because the mean of its divisors is an integer number (65924640).

Almost surely, 2^838993765 is an apocalyptic number.

It is an amenable number.

838993765 is a deficient number, since it is larger than the sum of its proper divisors (215800475).

838993765 is a wasteful number, since it uses less digits than its factorization.

838993765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80892.

The product of its digits is 9797760, while the sum is 58.

The square root of 838993765 is about 28965.3890876681. The cubic root of 838993765 is about 943.1618908583.

The spelling of 838993765 in words is "eight hundred thirty-eight million, nine hundred ninety-three thousand, seven hundred sixty-five".