1630936623 has 16 divisors (see below), whose sum is σ = 2196400640. Its totient is φ = 1076426496.

The previous prime is 1630936603. The next prime is 1630936673. The reversal of 1630936623 is 3266390361.

1630936623 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1630936623 - 2⁸ = 1630936367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630936603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147711 + ... + 158367.

It is an arithmetic number, because the mean of its divisors is an integer number (137275040).

Almost surely, 2^1630936623 is an apocalyptic number.

1630936623 is a deficient number, since it is larger than the sum of its proper divisors (565464017).

1630936623 is a wasteful number, since it uses less digits than its factorization.

1630936623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11166.

The product of its (nonzero) digits is 104976, while the sum is 39.

The square root of 1630936623 is about 40384.8563573030. The cubic root of 1630936623 is about 1177.0972949563.

The spelling of 1630936623 in words is "one billion, six hundred thirty million, nine hundred thirty-six thousand, six hundred twenty-three".