654430457 has 2 divisors, whose sum is σ = 654430458. Its totient is φ = 654430456.

The previous prime is 654430411. The next prime is 654430489. The reversal of 654430457 is 754034456.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 647753401 + 6677056 = 25451^2 + 2584^2 .

It is a cyclic number.

It is not a de Polignac number, because 654430457 - 2¹⁴ = 654414073 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654430457.

It is not a weakly prime, because it can be changed into another prime (654430157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327215228 + 327215229.

It is an arithmetic number, because the mean of its divisors is an integer number (327215229).

Almost surely, 2^654430457 is an apocalyptic number.

It is an amenable number.

654430457 is a deficient number, since it is larger than the sum of its proper divisors (1).

654430457 is an equidigital number, since it uses as much as digits as its factorization.

654430457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 654430457 is about 25581.8384210361. The cubic root of 654430457 is about 868.2027711378.

The spelling of 654430457 in words is "six hundred fifty-four million, four hundred thirty thousand, four hundred fifty-seven".