797499840 has 56 divisors (see below), whose sum is σ = 2532065040. Its totient is φ = 212666368.

The previous prime is 797499827. The next prime is 797499841. The reversal of 797499840 is 48994797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797499841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414405 + ... + 416324.

Almost surely, 2^797499840 is an apocalyptic number.

It is an amenable number.

797499840 is an abundant number, since it is smaller than the sum of its proper divisors (1734565200).

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

797499840 is a wasteful number, since it uses less digits than its factorization.

797499840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830749 (or 830739 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 797499840 is about 28240.0396600288. The cubic root of 797499840 is about 927.3496979901.

The spelling of 797499840 in words is "seven hundred ninety-seven million, four hundred ninety-nine thousand, eight hundred forty".