654606849 has 16 divisors (see below), whose sum is σ = 965354432. Its totient is φ = 391946688.

The previous prime is 654606839. The next prime is 654606857. The reversal of 654606849 is 948606456.

It is a happy number.

It is not a de Polignac number, because 654606849 - 2⁴ = 654606833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 654606798 and 654606807.

It is not an unprimeable number, because it can be changed into a prime (654606839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225379 + ... + 228264.

It is an arithmetic number, because the mean of its divisors is an integer number (60334652).

Almost surely, 2^654606849 is an apocalyptic number.

It is an amenable number.

654606849 is a deficient number, since it is larger than the sum of its proper divisors (310747583).

654606849 is a wasteful number, since it uses less digits than its factorization.

654606849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453696.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The square root of 654606849 is about 25585.2857908603. The cubic root of 654606849 is about 868.2807678470.

The spelling of 654606849 in words is "six hundred fifty-four million, six hundred six thousand, eight hundred forty-nine".