613949284 has 27 divisors (see below), whose sum is σ = 1164637803. Its totient is φ = 283063872.

The previous prime is 613949269. The next prime is 613949311. The reversal of 613949284 is 482949316.

The square root of 613949284 is 24778.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 128187684 + 485761600 = 11322^2 + 22040^2 .

It is a super-2 number, since 2×613949284² = 753867446648225312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 643752 + ... + 644704.

Almost surely, 2^613949284 is an apocalyptic number.

613949284 is the 24778-th square number.

It is an amenable number.

613949284 is a deficient number, since it is larger than the sum of its proper divisors (550688519).

613949284 is an equidigital number, since it uses as much as digits as its factorization.

613949284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936 (or 968 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The cubic root of 613949284 is about 849.9189237548.

The spelling of 613949284 in words is "six hundred thirteen million, nine hundred forty-nine thousand, two hundred eighty-four".