764212838 has 8 divisors (see below), whose sum is σ = 1146623520. Its totient is φ = 382005000.

The previous prime is 764212783. The next prime is 764212853. The reversal of 764212838 is 838212467.

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

It is a junction number, because it is equal to n+sod(n) for n = 764212795 and 764212804.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 40913 + ... + 56588.

It is an arithmetic number, because the mean of its divisors is an integer number (143327940).

Almost surely, 2^764212838 is an apocalyptic number.

764212838 is a deficient number, since it is larger than the sum of its proper divisors (382410682).

764212838 is a wasteful number, since it uses less digits than its factorization.

764212838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101422.

The product of its digits is 129024, while the sum is 41.

The square root of 764212838 is about 27644.3997583597. The cubic root of 764212838 is about 914.2636288308.

The spelling of 764212838 in words is "seven hundred sixty-four million, two hundred twelve thousand, eight hundred thirty-eight".