997700052 has 48 divisors (see below), whose sum is σ = 2380976640. Its totient is φ = 325075968.

The previous prime is 997700047. The next prime is 997700069. The reversal of 997700052 is 250007799.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 93949 + ... + 104027.

It is an arithmetic number, because the mean of its divisors is an integer number (49603680).

Almost surely, 2^997700052 is an apocalyptic number.

It is an amenable number.

997700052 is an abundant number, since it is smaller than the sum of its proper divisors (1383276588).

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

997700052 is a wasteful number, since it uses less digits than its factorization.

997700052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10272 (or 10270 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 39.

The square root of 997700052 is about 31586.3902970884. The cubic root of 997700052 is about 999.2327621633.

The spelling of 997700052 in words is "nine hundred ninety-seven million, seven hundred thousand, fifty-two".