1623986396 has 12 divisors (see below), whose sum is σ = 2845435152. Its totient is φ = 811004928.

The previous prime is 1623986389. The next prime is 1623986417. The reversal of 1623986396 is 6936893261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243365 + ... + 249948.

It is an arithmetic number, because the mean of its divisors is an integer number (237119596).

Almost surely, 2^1623986396 is an apocalyptic number.

It is an amenable number.

1623986396 is a deficient number, since it is larger than the sum of its proper divisors (1221448756).

1623986396 is a wasteful number, since it uses less digits than its factorization.

1623986396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494140 (or 494138 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 53.

The square root of 1623986396 is about 40298.7145700703. The cubic root of 1623986396 is about 1175.4228497112.

The spelling of 1623986396 in words is "one billion, six hundred twenty-three million, nine hundred eighty-six thousand, three hundred ninety-six".