613220473 has 2 divisors, whose sum is σ = 613220474. Its totient is φ = 613220472.

The previous prime is 613220467. The next prime is 613220479. The reversal of 613220473 is 374022316.

It is a balanced prime because it is at equal distance from previous prime (613220467) and next prime (613220479).

It can be written as a sum of positive squares in only one way, i.e., 611226729 + 1993744 = 24723^2 + 1412^2 .

It is a cyclic number.

It is not a de Polignac number, because 613220473 - 2²¹ = 611123321 is a prime.

It is not a weakly prime, because it can be changed into another prime (613220479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306610236 + 306610237.

It is an arithmetic number, because the mean of its divisors is an integer number (306610237).

Almost surely, 2^613220473 is an apocalyptic number.

It is an amenable number.

613220473 is a deficient number, since it is larger than the sum of its proper divisors (1).

613220473 is an equidigital number, since it uses as much as digits as its factorization.

613220473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 613220473 is about 24763.2888163103. The cubic root of 613220473 is about 849.5824814544.

Adding to 613220473 its reverse (374022316), we get a palindrome (987242789).

The spelling of 613220473 in words is "six hundred thirteen million, two hundred twenty thousand, four hundred seventy-three".