1607921323 has 2 divisors, whose sum is σ = 1607921324. Its totient is φ = 1607921322.

The previous prime is 1607921267. The next prime is 1607921351. The reversal of 1607921323 is 3231297061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1607921323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1607921363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803960661 + 803960662.

It is an arithmetic number, because the mean of its divisors is an integer number (803960662).

Almost surely, 2^1607921323 is an apocalyptic number.

1607921323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1607921323 is an equidigital number, since it uses as much as digits as its factorization.

1607921323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 1607921323 is about 40098.8942865012. The cubic root of 1607921323 is about 1171.5340927784.

The spelling of 1607921323 in words is "one billion, six hundred seven million, nine hundred twenty-one thousand, three hundred twenty-three".