331783349 has 4 divisors (see below), whose sum is σ = 346208736. Its totient is φ = 317357964.

The previous prime is 331783273. The next prime is 331783351. The reversal of 331783349 is 943387133.

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.

It is a cyclic number.

It is not a de Polignac number, because 331783349 - 2⁸ = 331783093 is a prime.

It is a super-2 number, since 2×331783349² = 220160381347311602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331783549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7212659 + ... + 7212704.

It is an arithmetic number, because the mean of its divisors is an integer number (86552184).

Almost surely, 2^331783349 is an apocalyptic number.

It is an amenable number.

331783349 is a deficient number, since it is larger than the sum of its proper divisors (14425387).

331783349 is a wasteful number, since it uses less digits than its factorization.

331783349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14425386.

The product of its digits is 163296, while the sum is 41.

The square root of 331783349 is about 18214.9210539052. The cubic root of 331783349 is about 692.2849051547.

The spelling of 331783349 in words is "three hundred thirty-one million, seven hundred eighty-three thousand, three hundred forty-nine".