331340627 has 2 divisors, whose sum is σ = 331340628. Its totient is φ = 331340626.

The previous prime is 331340621. The next prime is 331340641. The reversal of 331340627 is 726043133.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331340627 - 2¹² = 331336531 is a prime.

It is a super-2 number, since 2×331340627² = 219573222201506258, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331340627.

It is not a weakly prime, because it can be changed into another prime (331340621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165670313 + 165670314.

It is an arithmetic number, because the mean of its divisors is an integer number (165670314).

Almost surely, 2^331340627 is an apocalyptic number.

331340627 is a deficient number, since it is larger than the sum of its proper divisors (1).

331340627 is an equidigital number, since it uses as much as digits as its factorization.

331340627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 331340627 is about 18202.7642680995. The cubic root of 331340627 is about 691.9768465139.

The spelling of 331340627 in words is "three hundred thirty-one million, three hundred forty thousand, six hundred twenty-seven".