797887458 has 24 divisors (see below), whose sum is σ = 1738314396. Its totient is φ = 264492000.

The previous prime is 797887451. The next prime is 797887477. The reversal of 797887458 is 854788797.

It can be written as a sum of positive squares in 2 ways, for example, as 562970529 + 234916929 = 23727^2 + 15327^2 .

It is a junction number, because it is equal to n+sod(n) for n = 797887395 and 797887404.

It is not an unprimeable number, because it can be changed into a prime (797887451) 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, 119193 + ... + 125708.

Almost surely, 2^797887458 is an apocalyptic number.

797887458 is an abundant number, since it is smaller than the sum of its proper divisors (940426938).

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

797887458 is a wasteful number, since it uses less digits than its factorization.

797887458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245090 (or 245087 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 63.

The square root of 797887458 is about 28246.9017416070. The cubic root of 797887458 is about 927.4999171274.

The spelling of 797887458 in words is "seven hundred ninety-seven million, eight hundred eighty-seven thousand, four hundred fifty-eight".