997109575 has 108 divisors (see below), whose sum is σ = 1637655600. Its totient is φ = 601524000.

The previous prime is 997109557. The next prime is 997109609. The reversal of 997109575 is 575901799.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

997109575 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 997109575 - 2⁷ = 997109447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 32164810 + ... + 32164840.

Almost surely, 2^997109575 is an apocalyptic number.

997109575 is a deficient number, since it is larger than the sum of its proper divisors (640546025).

997109575 is a wasteful number, since it uses less digits than its factorization.

997109575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 893025, while the sum is 52.

The square root of 997109575 is about 31577.0418975559. The cubic root of 997109575 is about 999.0355952224.

The spelling of 997109575 in words is "nine hundred ninety-seven million, one hundred nine thousand, five hundred seventy-five".