997573929 has 64 divisors (see below), whose sum is σ = 1601510400. Its totient is φ = 545529600.

The previous prime is 997573903. The next prime is 997573939. The reversal of 997573929 is 929375799.

It is not a de Polignac number, because 997573929 - 2⁹ = 997573417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (997573939) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 1508859 + ... + 1509519.

It is an arithmetic number, because the mean of its divisors is an integer number (25023600).

Almost surely, 2^997573929 is an apocalyptic number.

It is an amenable number.

997573929 is a deficient number, since it is larger than the sum of its proper divisors (603936471).

997573929 is a wasteful number, since it uses less digits than its factorization.

997573929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its digits is 9644670, while the sum is 60.

The square root of 997573929 is about 31584.3937570440. The cubic root of 997573929 is about 999.1906548037.

The spelling of 997573929 in words is "nine hundred ninety-seven million, five hundred seventy-three thousand, nine hundred twenty-nine".