997341538 has 8 divisors (see below), whose sum is σ = 1496225232. Its totient is φ = 498599796.

The previous prime is 997341497. The next prime is 997341539. The reversal of 997341538 is 835143799.

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

It is a super-3 number, since 3×997341538³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 997341491 and 997341500.

It is not an unprimeable number, because it can be changed into a prime (997341539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15720 + ... + 47347.

It is an arithmetic number, because the mean of its divisors is an integer number (187028154).

Almost surely, 2^997341538 is an apocalyptic number.

997341538 is a deficient number, since it is larger than the sum of its proper divisors (498883694).

997341538 is a wasteful number, since it uses less digits than its factorization.

997341538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70976.

The product of its digits is 816480, while the sum is 49.

The square root of 997341538 is about 31580.7146530917. The cubic root of 997341538 is about 999.1130595692.

The spelling of 997341538 in words is "nine hundred ninety-seven million, three hundred forty-one thousand, five hundred thirty-eight".