331928741 has 2 divisors, whose sum is σ = 331928742. Its totient is φ = 331928740.

The previous prime is 331928731. The next prime is 331928783. The reversal of 331928741 is 147829133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323640100 + 8288641 = 17990^2 + 2879^2 .

It is an emirp because it is prime and its reverse (147829133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331928741 - 2⁶ = 331928677 is a prime.

It is a super-2 number, since 2×331928741² = 220353378203690162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331928695 and 331928704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331928731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165964370 + 165964371.

It is an arithmetic number, because the mean of its divisors is an integer number (165964371).

Almost surely, 2^331928741 is an apocalyptic number.

It is an amenable number.

331928741 is a deficient number, since it is larger than the sum of its proper divisors (1).

331928741 is an equidigital number, since it uses as much as digits as its factorization.

331928741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 331928741 is about 18218.9116305009. The cubic root of 331928741 is about 692.3860132908.

The spelling of 331928741 in words is "three hundred thirty-one million, nine hundred twenty-eight thousand, seven hundred forty-one".