654706971 has 48 divisors (see below), whose sum is σ = 994765824. Its totient is φ = 414554112.

The previous prime is 654706939. The next prime is 654706973. The reversal of 654706971 is 179607456.

It is a happy number.

It is not a de Polignac number, because 654706971 - 2⁵ = 654706939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (654706973) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4778815 + ... + 4778951.

It is an arithmetic number, because the mean of its divisors is an integer number (20724288).

Almost surely, 2^654706971 is an apocalyptic number.

654706971 is a deficient number, since it is larger than the sum of its proper divisors (340058853).

654706971 is a wasteful number, since it uses less digits than its factorization.

654706971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 654706971 is about 25587.2423484830. The cubic root of 654706971 is about 868.3250333861.

The spelling of 654706971 in words is "six hundred fifty-four million, seven hundred six thousand, nine hundred seventy-one".