513678798 has 24 divisors (see below), whose sum is σ = 1151350200. Its totient is φ = 165321744.

The previous prime is 513678793. The next prime is 513678821. The reversal of 513678798 is 897876315.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513678793) 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, 491508 + ... + 492551.

It is an arithmetic number, because the mean of its divisors is an integer number (47972925).

Almost surely, 2^513678798 is an apocalyptic number.

513678798 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

513678798 is an abundant number, since it is smaller than the sum of its proper divisors (637671402).

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

513678798 is a wasteful number, since it uses less digits than its factorization.

513678798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984096 (or 984093 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 513678798 is about 22664.4831840481. The cubic root of 513678798 is about 800.8734200331.

The spelling of 513678798 in words is "five hundred thirteen million, six hundred seventy-eight thousand, seven hundred ninety-eight".