838051693 has 4 divisors (see below), whose sum is σ = 838539808. Its totient is φ = 837563580.

The previous prime is 838051673. The next prime is 838051717. The reversal of 838051693 is 396150838.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 396150838 = 2 ⋅198075419.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838051693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838051633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241473 + ... + 244918.

It is an arithmetic number, because the mean of its divisors is an integer number (209634952).

Almost surely, 2^838051693 is an apocalyptic number.

It is an amenable number.

838051693 is a deficient number, since it is larger than the sum of its proper divisors (488115).

838051693 is a wasteful number, since it uses less digits than its factorization.

838051693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488114.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 838051693 is about 28949.1224910186. The cubic root of 838051693 is about 942.8087459296.

The spelling of 838051693 in words is "eight hundred thirty-eight million, fifty-one thousand, six hundred ninety-three".