657346441 has 2 divisors, whose sum is σ = 657346442. Its totient is φ = 657346440.

The previous prime is 657346433. The next prime is 657346489. The reversal of 657346441 is 144643756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 642876025 + 14470416 = 25355^2 + 3804^2 .

It is a cyclic number.

It is not a de Polignac number, because 657346441 - 2³ = 657346433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 657346394 and 657346403.

It is not a weakly prime, because it can be changed into another prime (657346411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328673220 + 328673221.

It is an arithmetic number, because the mean of its divisors is an integer number (328673221).

Almost surely, 2^657346441 is an apocalyptic number.

It is an amenable number.

657346441 is a deficient number, since it is larger than the sum of its proper divisors (1).

657346441 is an equidigital number, since it uses as much as digits as its factorization.

657346441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 40.

The square root of 657346441 is about 25638.7683206507. The cubic root of 657346441 is about 869.4903612246.

The spelling of 657346441 in words is "six hundred fifty-seven million, three hundred forty-six thousand, four hundred forty-one".