838751664 has 40 divisors (see below), whose sum is σ = 2191132080. Its totient is φ = 276441088.

The previous prime is 838751657. The next prime is 838751671. The reversal of 838751664 is 466157838.

It is an interprime number because it is at equal distance from previous prime (838751657) and next prime (838751671).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93897 + ... + 102440.

It is an arithmetic number, because the mean of its divisors is an integer number (54778302).

Almost surely, 2^838751664 is an apocalyptic number.

It is an amenable number.

838751664 is an abundant number, since it is smaller than the sum of its proper divisors (1352380416).

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

838751664 is a wasteful number, since it uses less digits than its factorization.

838751664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196437 (or 196431 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 838751664 is about 28961.2096432452. The cubic root of 838751664 is about 943.0711621730.

The spelling of 838751664 in words is "eight hundred thirty-eight million, seven hundred fifty-one thousand, six hundred sixty-four".