997338015 has 40 divisors (see below), whose sum is σ = 1797320448. Its totient is φ = 529087680.

The previous prime is 997338011. The next prime is 997338037. The reversal of 997338015 is 510833799.

It is a happy number.

It is not a de Polignac number, because 997338015 - 2² = 997338011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997338011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 70909 + ... + 83801.

Almost surely, 2^997338015 is an apocalyptic number.

997338015 is a deficient number, since it is larger than the sum of its proper divisors (799982433).

997338015 is a wasteful number, since it uses less digits than its factorization.

997338015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13101 (or 13092 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 997338015 is about 31580.6588753306. The cubic root of 997338015 is about 999.1118831486. Note that the first 3 decimals are identical.

The spelling of 997338015 in words is "nine hundred ninety-seven million, three hundred thirty-eight thousand, fifteen".