1023999997 has 8 divisors (see below), whose sum is σ = 1079539776. Its totient is φ = 969378432.

The previous prime is 1023999989. The next prime is 1024000009. The reversal of 1023999997 is 7999993201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1023999997 - 2³ = 1023999989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023999917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227263 + ... + 231724.

It is an arithmetic number, because the mean of its divisors is an integer number (134942472).

Almost surely, 2^1023999997 is an apocalyptic number.

It is an amenable number.

1023999997 is a deficient number, since it is larger than the sum of its proper divisors (55539779).

1023999997 is an equidigital number, since it uses as much as digits as its factorization.

1023999997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459107.

The product of its (nonzero) digits is 2480058, while the sum is 58.

The square root of 1023999997 is about 31999.9999531250. Note that the first 4 decimals coincide. The cubic root of 1023999997 is about 1007.9368389316.

The spelling of 1023999997 in words is "one billion, twenty-three million, nine hundred ninety-nine thousand, nine hundred ninety-seven".