654418873 has 2 divisors, whose sum is σ = 654418874. Its totient is φ = 654418872.

The previous prime is 654418837. The next prime is 654418879. The reversal of 654418873 is 378814456.

It is a happy number.

Together with previous prime (654418837) 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., 434430649 + 219988224 = 20843^2 + 14832^2 .

It is a cyclic number.

It is not a de Polignac number, because 654418873 - 2⁹ = 654418361 is a prime.

It is a super-2 number, since 2×654418873² = 856528122677180258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (654418879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327209436 + 327209437.

It is an arithmetic number, because the mean of its divisors is an integer number (327209437).

Almost surely, 2^654418873 is an apocalyptic number.

It is an amenable number.

654418873 is a deficient number, since it is larger than the sum of its proper divisors (1).

654418873 is an equidigital number, since it uses as much as digits as its factorization.

654418873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 46.

The square root of 654418873 is about 25581.6120094102. The cubic root of 654418873 is about 868.1976484544.

The spelling of 654418873 in words is "six hundred fifty-four million, four hundred eighteen thousand, eight hundred seventy-three".