331411397 has 4 divisors (see below), whose sum is σ = 331488000. Its totient is φ = 331334796.

The previous prime is 331411361. The next prime is 331411403. The reversal of 331411397 is 793114133.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 793114133 = 7 ⋅113302019.

It is a cyclic number.

It is not a de Polignac number, because 331411397 - 2¹² = 331407301 is a prime.

It is a super-2 number, since 2×331411397² = 219667028122983218, 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 (331411307) 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, 31397 + ... + 40602.

It is an arithmetic number, because the mean of its divisors is an integer number (82872000).

Almost surely, 2^331411397 is an apocalyptic number.

It is an amenable number.

331411397 is a deficient number, since it is larger than the sum of its proper divisors (76603).

331411397 is an equidigital number, since it uses as much as digits as its factorization.

331411397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76602.

The product of its digits is 6804, while the sum is 32.

The square root of 331411397 is about 18204.7080998296. The cubic root of 331411397 is about 692.0261087246.

The spelling of 331411397 in words is "three hundred thirty-one million, four hundred eleven thousand, three hundred ninety-seven".