997404799 has 8 divisors (see below), whose sum is σ = 1005456960. Its totient is φ = 989364096.

The previous prime is 997404781. The next prime is 997404809.

997404799 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 997404799 - 2¹³ = 997396607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997404299) 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, 280867 + ... + 284395.

It is an arithmetic number, because the mean of its divisors is an integer number (125682120).

Almost surely, 2^997404799 is an apocalyptic number.

997404799 is a deficient number, since it is larger than the sum of its proper divisors (8052161).

997404799 is a wasteful number, since it uses less digits than its factorization.

997404799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5729.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The square root of 997404799 is about 31581.7162136575. The cubic root of 997404799 is about 999.1341835783.

The spelling of 997404799 in words is "nine hundred ninety-seven million, four hundred four thousand, seven hundred ninety-nine".