350476821 has 8 divisors (see below), whose sum is σ = 519224960. Its totient is φ = 233651196.

The previous prime is 350476817. The next prime is 350476823. The reversal of 350476821 is 128674053.

350476821 is a `hidden beast` number, since 3 + 504 + 76 + 82 + 1 = 666.

It is not a de Polignac number, because 350476821 - 2² = 350476817 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 (350476823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6490285 + ... + 6490338.

It is an arithmetic number, because the mean of its divisors is an integer number (64903120).

Almost surely, 2^350476821 is an apocalyptic number.

It is an amenable number.

350476821 is a deficient number, since it is larger than the sum of its proper divisors (168748139).

350476821 is a wasteful number, since it uses less digits than its factorization.

350476821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12980632 (or 12980626 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 350476821 is about 18721.0261737972. The cubic root of 350476821 is about 705.0497565607.

The spelling of 350476821 in words is "three hundred fifty million, four hundred seventy-six thousand, eight hundred twenty-one".