513669398 has 16 divisors (see below), whose sum is σ = 845712576. Its totient is φ = 232052040.

The previous prime is 513669397. The next prime is 513669413. The reversal of 513669398 is 893966315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513669397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68036 + ... + 75207.

It is an arithmetic number, because the mean of its divisors is an integer number (52857036).

Almost surely, 2^513669398 is an apocalyptic number.

513669398 is a deficient number, since it is larger than the sum of its proper divisors (332043178).

513669398 is a wasteful number, since it uses less digits than its factorization.

513669398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143419.

The product of its digits is 1049760, while the sum is 50.

The square root of 513669398 is about 22664.2758101820. The cubic root of 513669398 is about 800.8685348428.

The spelling of 513669398 in words is "five hundred thirteen million, six hundred sixty-nine thousand, three hundred ninety-eight".