1623320341 has 2 divisors, whose sum is σ = 1623320342. Its totient is φ = 1623320340.

The previous prime is 1623320333. The next prime is 1623320359. The reversal of 1623320341 is 1430233261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1577757841 + 45562500 = 39721^2 + 6750^2 .

It is a cyclic number.

It is not a de Polignac number, because 1623320341 - 2³ = 1623320333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623320311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811660170 + 811660171.

It is an arithmetic number, because the mean of its divisors is an integer number (811660171).

Almost surely, 2^1623320341 is an apocalyptic number.

It is an amenable number.

1623320341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623320341 is an equidigital number, since it uses as much as digits as its factorization.

1623320341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1623320341 is about 40290.4497492892. The cubic root of 1623320341 is about 1175.2621333974.

The spelling of 1623320341 in words is "one billion, six hundred twenty-three million, three hundred twenty thousand, three hundred forty-one".