1623425703 has 4 divisors (see below), whose sum is σ = 2164567608. Its totient is φ = 1082283800.

The previous prime is 1623425663. The next prime is 1623425707. The reversal of 1623425703 is 3075243261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3075243261 = 3 ⋅1025081087.

It is a cyclic number.

It is not a de Polignac number, because 1623425703 - 2¹⁰ = 1623424679 is a prime.

It is a super-2 number, since 2×1623425703² = 5271022026322088418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623425707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270570948 + ... + 270570953.

It is an arithmetic number, because the mean of its divisors is an integer number (541141902).

Almost surely, 2^1623425703 is an apocalyptic number.

1623425703 is a deficient number, since it is larger than the sum of its proper divisors (541141905).

1623425703 is an equidigital number, since it uses as much as digits as its factorization.

1623425703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541141904.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 1623425703 is about 40291.7572587744. The cubic root of 1623425703 is about 1175.2875597385.

Adding to 1623425703 its reverse (3075243261), we get a palindrome (4698668964).

The spelling of 1623425703 in words is "one billion, six hundred twenty-three million, four hundred twenty-five thousand, seven hundred three".