1607923 has 2 divisors, whose sum is σ = 1607924. Its totient is φ = 1607922.

The previous prime is 1607873. The next prime is 1607929. The reversal of 1607923 is 3297061.

It is a strong prime.

It is an emirp because it is prime and its reverse (3297061) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1607923 is a prime.

1607923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1607891 and 1607900.

It is not a weakly prime, because it can be changed into another prime (1607929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803961 + 803962.

It is an arithmetic number, because the mean of its divisors is an integer number (803962).

2^1607923 is an apocalyptic number.

1607923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1607923 is an equidigital number, since it uses as much as digits as its factorization.

1607923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1607923 is about 1268.0390372540. The cubic root of 1607923 is about 117.1534500067.

The spelling of 1607923 in words is "one million, six hundred seven thousand, nine hundred twenty-three".