997590503 has 16 divisors (see below), whose sum is σ = 1228555776. Its totient is φ = 788819040.

The previous prime is 997590499. The next prime is 997590511. The reversal of 997590503 is 305095799.

It is a cyclic number.

It is not a de Polignac number, because 997590503 - 2² = 997590499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997590533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253118 + ... + 257028.

It is an arithmetic number, because the mean of its divisors is an integer number (76784736).

Almost surely, 2^997590503 is an apocalyptic number.

997590503 is a deficient number, since it is larger than the sum of its proper divisors (230965273).

997590503 is a wasteful number, since it uses less digits than its factorization.

997590503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734.

The product of its (nonzero) digits is 382725, while the sum is 47.

The square root of 997590503 is about 31584.6561323691. The cubic root of 997590503 is about 999.1961883934.

The spelling of 997590503 in words is "nine hundred ninety-seven million, five hundred ninety thousand, five hundred three".