997606799 has 8 divisors (see below), whose sum is σ = 1200128640. Its totient is φ = 810086616.

The previous prime is 997606783. The next prime is 997606811.

997606799 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 997606799 - 2⁴ = 997606783 is a prime.

It is a super-2 number, since 2×997606799² = 1990438650822052802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997606739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3750269 + ... + 3750534.

It is an arithmetic number, because the mean of its divisors is an integer number (150016080).

Almost surely, 2^997606799 is an apocalyptic number.

997606799 is a deficient number, since it is larger than the sum of its proper divisors (202521841).

997606799 is a wasteful number, since it uses less digits than its factorization.

997606799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500829.

The product of its (nonzero) digits is 11573604, while the sum is 62.

The square root of 997606799 is about 31584.9141046798. The cubic root of 997606799 is about 999.2016291069.

The spelling of 997606799 in words is "nine hundred ninety-seven million, six hundred six thousand, seven hundred ninety-nine".