470721613 has 2 divisors, whose sum is σ = 470721614. Its totient is φ = 470721612.

The previous prime is 470721571. The next prime is 470721631. The reversal of 470721613 is 316127074.

Together with next prime (470721631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 468203044 + 2518569 = 21638^2 + 1587^2 .

It is a cyclic number.

It is not a de Polignac number, because 470721613 - 2¹³ = 470713421 is a prime.

It is a super-5 number, since 5×470721613⁵ (a number of 45 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (470721683) by changing a digit.

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 as a sum of consecutive naturals, namely, 235360806 + 235360807.

It is an arithmetic number, because the mean of its divisors is an integer number (235360807).

Almost surely, 2^470721613 is an apocalyptic number.

It is an amenable number.

470721613 is a deficient number, since it is larger than the sum of its proper divisors (1).

470721613 is an equidigital number, since it uses as much as digits as its factorization.

470721613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 470721613 is about 21696.1197682904. The cubic root of 470721613 is about 777.8957159606.

Adding to 470721613 its reverse (316127074), we get a palindrome (786848687).

The spelling of 470721613 in words is "four hundred seventy million, seven hundred twenty-one thousand, six hundred thirteen".