513697330 has 32 divisors (see below), whose sum is σ = 980930736. Its totient is φ = 193019904.

The previous prime is 513697291. The next prime is 513697333. The reversal of 513697330 is 33796315.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 500730129 + 12967201 = 22377^2 + 3601^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 513697330.

It is not an unprimeable number, because it can be changed into a prime (513697333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95472 + ... + 100708.

Almost surely, 2^513697330 is an apocalyptic number.

513697330 is a deficient number, since it is larger than the sum of its proper divisors (467233406).

513697330 is a wasteful number, since it uses less digits than its factorization.

513697330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838.

The product of its (nonzero) digits is 51030, while the sum is 37.

The square root of 513697330 is about 22664.8920138614. The cubic root of 513697330 is about 800.8830509593.

The spelling of 513697330 in words is "five hundred thirteen million, six hundred ninety-seven thousand, three hundred thirty".