1023663604 has 12 divisors (see below), whose sum is σ = 1792239904. Its totient is φ = 511595064.

The previous prime is 1023663569. The next prime is 1023663623. The reversal of 1023663604 is 4063663201.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 49272 + ... + 66895.

Almost surely, 2^1023663604 is an apocalyptic number.

It is an amenable number.

1023663604 is a deficient number, since it is larger than the sum of its proper divisors (768576300).

1023663604 is a wasteful number, since it uses less digits than its factorization.

1023663604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118374 (or 118372 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 1023663604 is about 31994.7433807493. The cubic root of 1023663604 is about 1007.8264548062.

The spelling of 1023663604 in words is "one billion, twenty-three million, six hundred sixty-three thousand, six hundred four".