997464798 has 24 divisors (see below), whose sum is σ = 2357644536. Its totient is φ = 302262000.

The previous prime is 997464779. The next prime is 997464799. The reversal of 997464798 is 897464799.

997464798 is a `hidden beast` number, since 99 + 74 + 6 + 479 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997464799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2518653 + ... + 2519048.

It is an arithmetic number, because the mean of its divisors is an integer number (98235189).

Almost surely, 2^997464798 is an apocalyptic number.

997464798 is an abundant number, since it is smaller than the sum of its proper divisors (1360179738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997464798 is a wasteful number, since it uses less digits than its factorization.

997464798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037720 (or 5037717 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The square root of 997464798 is about 31582.6661002519. Note that the first 3 decimals coincide. The cubic root of 997464798 is about 999.1542175203.

Subtracting from 997464798 its reverse (897464799), we obtain a palindrome (99999999).

The spelling of 997464798 in words is "nine hundred ninety-seven million, four hundred sixty-four thousand, seven hundred ninety-eight".