997030798 has 8 divisors (see below), whose sum is σ = 1495801008. Its totient is φ = 498430464.

The previous prime is 997030747. The next prime is 997030799. The reversal of 997030798 is 897030799.

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 (997030799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26611 + ... + 51982.

It is an arithmetic number, because the mean of its divisors is an integer number (186975126).

Almost surely, 2^997030798 is an apocalyptic number.

997030798 is a deficient number, since it is larger than the sum of its proper divisors (498770210).

997030798 is a wasteful number, since it uses less digits than its factorization.

997030798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84938.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 997030798 is about 31575.7944951509. The cubic root of 997030798 is about 999.0092848075.

Subtracting from 997030798 its reverse (897030799), we obtain a palindrome (99999999).

The spelling of 997030798 in words is "nine hundred ninety-seven million, thirty thousand, seven hundred ninety-eight".