1023000993 has 24 divisors (see below), whose sum is σ = 1788104448. Its totient is φ = 550184832.

The previous prime is 1023000973. The next prime is 1023001009. The reversal of 1023000993 is 3990003201.

It is a de Polignac number, because none of the positive numbers 2^k-1023000993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1023000943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 476521 + ... + 478662.

It is an arithmetic number, because the mean of its divisors is an integer number (74504352).

Almost surely, 2^1023000993 is an apocalyptic number.

It is an amenable number.

1023000993 is a deficient number, since it is larger than the sum of its proper divisors (765103455).

1023000993 is a wasteful number, since it uses less digits than its factorization.

1023000993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955213 (or 955210 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 1023000993 is about 31984.3867066417. The cubic root of 1023000993 is about 1007.6089546329.

The spelling of 1023000993 in words is "one billion, twenty-three million, nine hundred ninety-three", and thus it is an aban number.