997353572 has 6 divisors (see below), whose sum is σ = 1745368758. Its totient is φ = 498676784.

The previous prime is 997353571. The next prime is 997353593. The reversal of 997353572 is 275353799.

997353572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 989479936 + 7873636 = 31456^2 + 2806^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 997353572.

It is not an unprimeable number, because it can be changed into a prime (997353571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124669193 + ... + 124669200.

It is an arithmetic number, because the mean of its divisors is an integer number (290894793).

Almost surely, 2^997353572 is an apocalyptic number.

It is an amenable number.

997353572 is a deficient number, since it is larger than the sum of its proper divisors (748015186).

997353572 is a wasteful number, since it uses less digits than its factorization.

997353572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249338397 (or 249338395 counting only the distinct ones).

The product of its digits is 1786050, while the sum is 50.

The square root of 997353572 is about 31580.9051801876. The cubic root of 997353572 is about 999.1170780115.

The spelling of 997353572 in words is "nine hundred ninety-seven million, three hundred fifty-three thousand, five hundred seventy-two".