997400000 has 84 divisors (see below), whose sum is σ = 2474357256. Its totient is φ = 398880000.

The previous prime is 997399981. The next prime is 997400011. The reversal of 997400000 is 4799.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197507 + ... + 202493.

It is an arithmetic number, because the mean of its divisors is an integer number (29456634).

Almost surely, 2^997400000 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 997400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1237178628).

997400000 is an abundant number, since it is smaller than the sum of its proper divisors (1476957256).

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

997400000 is an frugal number, since it uses more digits than its factorization.

997400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5024 (or 4994 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 997400000 is about 31581.6402360612. The cubic root of 997400000 is about 999.1325811354.

Adding to 997400000 its reverse (4799), we get a palindrome (997404799).

The spelling of 997400000 in words is "nine hundred ninety-seven million, four hundred thousand".