997641032 has 8 divisors (see below), whose sum is σ = 1870576950. Its totient is φ = 498820512.

The previous prime is 997641013. The next prime is 997641053. The reversal of 997641032 is 230146799.

It can be written as a sum of positive squares in only one way, i.e., 618715876 + 378925156 = 24874^2 + 19466^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62352557 + ... + 62352572.

Almost surely, 2^997641032 is an apocalyptic number.

It is an amenable number.

997641032 is a deficient number, since it is larger than the sum of its proper divisors (872935918).

997641032 is a wasteful number, since it uses less digits than its factorization.

997641032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124705135 (or 124705131 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 997641032 is about 31585.4560201369. The cubic root of 997641032 is about 999.2130582184.

The spelling of 997641032 in words is "nine hundred ninety-seven million, six hundred forty-one thousand, thirty-two".