997471599 has 8 divisors (see below), whose sum is σ = 1330374960. Its totient is φ = 664774656.

The previous prime is 997471577. The next prime is 997471603. The reversal of 997471599 is 995174799.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 997471599 - 2¹³ = 997463407 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997471399) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39952 + ... + 59925.

It is an arithmetic number, because the mean of its divisors is an integer number (166296870).

Almost surely, 2^997471599 is an apocalyptic number.

997471599 is a deficient number, since it is larger than the sum of its proper divisors (332903361).

997471599 is a wasteful number, since it uses less digits than its factorization.

997471599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103209.

The product of its digits is 6429780, while the sum is 60.

The square root of 997471599 is about 31582.7737698892. The cubic root of 997471599 is about 999.1564883548.

The spelling of 997471599 in words is "nine hundred ninety-seven million, four hundred seventy-one thousand, five hundred ninety-nine".