654071670 has 48 divisors (see below), whose sum is σ = 1943529120. Its totient is φ = 149501952.

The previous prime is 654071629. The next prime is 654071689. The reversal of 654071670 is 76170456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 518475 + ... + 519734.

It is an arithmetic number, because the mean of its divisors is an integer number (40490190).

Almost surely, 2^654071670 is an apocalyptic number.

654071670 is an abundant number, since it is smaller than the sum of its proper divisors (1289457450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654071670 is a wasteful number, since it uses less digits than its factorization.

654071670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038229 (or 1038226 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 654071670 is about 25574.8249260870. The cubic root of 654071670 is about 868.0440800666.

It can be divided in two parts, 6540 and 71670, that added together give a triangular number (78210 = T₃₉₅).

The spelling of 654071670 in words is "six hundred fifty-four million, seventy-one thousand, six hundred seventy".