997383588 has 12 divisors (see below), whose sum is σ = 2327228400. Its totient is φ = 332461192.

The previous prime is 997383559. The next prime is 997383593. The reversal of 997383588 is 885383799.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×997383588² = 1989548043223507488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41557638 + ... + 41557661.

It is an arithmetic number, because the mean of its divisors is an integer number (193935700).

Almost surely, 2^997383588 is an apocalyptic number.

It is an amenable number.

997383588 is an abundant number, since it is smaller than the sum of its proper divisors (1329844812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997383588 is a wasteful number, since it uses less digits than its factorization.

997383588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83115306 (or 83115304 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 60.

The square root of 997383588 is about 31581.3804004828. The cubic root of 997383588 is about 999.1271009356.

The spelling of 997383588 in words is "nine hundred ninety-seven million, three hundred eighty-three thousand, five hundred eighty-eight".