997393043003 has 8 divisors (see below), whose sum is σ = 1158564284640. Its totient is φ = 840893431680.

The previous prime is 997393042991. The next prime is 997393043071. The reversal of 997393043003 is 300340393799.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997393043003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (997393043203) 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, 1167907118 + ... + 1167907971.

It is an arithmetic number, because the mean of its divisors is an integer number (144820535580).

Almost surely, 2^997393043003 is an apocalyptic number.

997393043003 is a deficient number, since it is larger than the sum of its proper divisors (161171241637).

997393043003 is a wasteful number, since it uses less digits than its factorization.

997393043003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335815157.

The product of its (nonzero) digits is 1653372, while the sum is 50.

The spelling of 997393043003 in words is "nine hundred ninety-seven billion, three hundred ninety-three million, forty-three thousand, three".