997469726 has 8 divisors (see below), whose sum is σ = 1632223224. Its totient is φ = 453395320.

The previous prime is 997469723. The next prime is 997469777. The reversal of 997469726 is 627964799.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997469723) 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 3 ways as a sum of consecutive naturals, for example, 22669745 + ... + 22669788.

It is an arithmetic number, because the mean of its divisors is an integer number (204027903).

Almost surely, 2^997469726 is an apocalyptic number.

997469726 is a deficient number, since it is larger than the sum of its proper divisors (634753498).

997469726 is a wasteful number, since it uses less digits than its factorization.

997469726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45339546.

The product of its digits is 10287648, while the sum is 59.

The square root of 997469726 is about 31582.7441176349. The cubic root of 997469726 is about 999.1558629665.

The spelling of 997469726 in words is "nine hundred ninety-seven million, four hundred sixty-nine thousand, seven hundred twenty-six".