655448329 has 2 divisors, whose sum is σ = 655448330. Its totient is φ = 655448328.

The previous prime is 655448317. The next prime is 655448341. The reversal of 655448329 is 923844556.

It is a balanced prime because it is at equal distance from previous prime (655448317) and next prime (655448341).

It can be written as a sum of positive squares in only one way, i.e., 490711104 + 164737225 = 22152^2 + 12835^2 .

It is a cyclic number.

It is not a de Polignac number, because 655448329 - 2⁷ = 655448201 is a prime.

It is a super-2 number, since 2×655448329² = 859225023977784482, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (655448389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327724164 + 327724165.

It is an arithmetic number, because the mean of its divisors is an integer number (327724165).

Almost surely, 2^655448329 is an apocalyptic number.

It is an amenable number.

655448329 is a deficient number, since it is larger than the sum of its proper divisors (1).

655448329 is an equidigital number, since it uses as much as digits as its factorization.

655448329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 46.

The square root of 655448329 is about 25601.7251176556. The cubic root of 655448329 is about 868.6526592867.

It can be divided in two parts, 655 and 448329, that multiplied together give a triangular number (293655495 = T₂₄₂₃₄).

The spelling of 655448329 in words is "six hundred fifty-five million, four hundred forty-eight thousand, three hundred twenty-nine".