654664214 has 16 divisors (see below), whose sum is σ = 989323440. Its totient is φ = 324898560.

The previous prime is 654664211. The next prime is 654664217. The reversal of 654664214 is 412466456.

It is an interprime number because it is at equal distance from previous prime (654664211) and next prime (654664217).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654664211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170702 + ... + 174494.

It is an arithmetic number, because the mean of its divisors is an integer number (61832715).

Almost surely, 2^654664214 is an apocalyptic number.

654664214 is a deficient number, since it is larger than the sum of its proper divisors (334659226).

654664214 is a wasteful number, since it uses less digits than its factorization.

654664214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415.

The product of its digits is 138240, while the sum is 38.

The square root of 654664214 is about 25586.4068208101. The cubic root of 654664214 is about 868.3061303840.

The spelling of 654664214 in words is "six hundred fifty-four million, six hundred sixty-four thousand, two hundred fourteen".