1628097703 has 4 divisors (see below), whose sum is σ = 1628211040. Its totient is φ = 1627984368.

The previous prime is 1628097697. The next prime is 1628097749. The reversal of 1628097703 is 3077908261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3077908261 = 97 ⋅31731013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1628097703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1628097703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628094703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31350 + ... + 65107.

It is an arithmetic number, because the mean of its divisors is an integer number (407052760).

Almost surely, 2^1628097703 is an apocalyptic number.

1628097703 is a deficient number, since it is larger than the sum of its proper divisors (113337).

1628097703 is an equidigital number, since it uses as much as digits as its factorization.

1628097703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113336.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 1628097703 is about 40349.6927249762. The cubic root of 1628097703 is about 1176.4139195664.

The spelling of 1628097703 in words is "one billion, six hundred twenty-eight million, ninety-seven thousand, seven hundred three".