331421477 has 8 divisors (see below), whose sum is σ = 351849600. Its totient is φ = 311097024.

The previous prime is 331421473. The next prime is 331421507. The reversal of 331421477 is 774124133.

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

It is a cyclic number.

It is not a de Polignac number, because 331421477 - 2² = 331421473 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 (331421471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19277 + ... + 32162.

It is an arithmetic number, because the mean of its divisors is an integer number (43981200).

Almost surely, 2^331421477 is an apocalyptic number.

It is an amenable number.

331421477 is a deficient number, since it is larger than the sum of its proper divisors (20428123).

331421477 is a wasteful number, since it uses less digits than its factorization.

331421477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51835.

The product of its digits is 14112, while the sum is 32.

The square root of 331421477 is about 18204.9849491836. The cubic root of 331421477 is about 692.0331247300.

The spelling of 331421477 in words is "three hundred thirty-one million, four hundred twenty-one thousand, four hundred seventy-seven".