997838352 has 300 divisors, whose sum is σ = 3540643920. Its totient is φ = 269764992.

The previous prime is 997838291. The next prime is 997838357. The reversal of 997838352 is 253838799.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (997838357) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1206163 + ... + 1206989.

Almost surely, 2^997838352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 997838352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1770321960).

997838352 is an abundant number, since it is smaller than the sum of its proper divisors (2542805568).

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

997838352 is a wasteful number, since it uses less digits than its factorization.

997838352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 858 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 997838352 is about 31588.5794552398. The cubic root of 997838352 is about 999.2789308509.

The spelling of 997838352 in words is "nine hundred ninety-seven million, eight hundred thirty-eight thousand, three hundred fifty-two".