997513760 has 48 divisors (see below), whose sum is σ = 2495258136. Its totient is φ = 375533568.

The previous prime is 997513757. The next prime is 997513763. The reversal of 997513760 is 67315799.

It is a happy number.

997513760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (997513757) and next prime (997513763).

It can be written as a sum of positive squares in 4 ways, for example, as 804970384 + 192543376 = 28372^2 + 13876^2 .

It is not an unprimeable number, because it can be changed into a prime (997513763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180647 + ... + 186086.

Almost surely, 2^997513760 is an apocalyptic number.

It is an amenable number.

997513760 is an abundant number, since it is smaller than the sum of its proper divisors (1497744376).

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

997513760 is a wasteful number, since it uses less digits than its factorization.

997513760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366765 (or 366757 counting only the distinct ones).

The product of its (nonzero) digits is 357210, while the sum is 47.

The square root of 997513760 is about 31583.4412311262. The cubic root of 997513760 is about 999.1705655621.

The spelling of 997513760 in words is "nine hundred ninety-seven million, five hundred thirteen thousand, seven hundred sixty".