654563670 has 64 divisors (see below), whose sum is σ = 1683624960. Its totient is φ = 162442368.

The previous prime is 654563659. The next prime is 654563671. The reversal of 654563670 is 76365456.

654563670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654563671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12711 + ... + 38349.

It is an arithmetic number, because the mean of its divisors is an integer number (26306640).

Almost surely, 2^654563670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654563670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (841812480).

654563670 is an abundant number, since it is smaller than the sum of its proper divisors (1029061290).

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

654563670 is a wasteful number, since it uses less digits than its factorization.

654563670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25709.

The product of its (nonzero) digits is 453600, while the sum is 42.

The square root of 654563670 is about 25584.4419520927. The cubic root of 654563670 is about 868.2616763268.

The spelling of 654563670 in words is "six hundred fifty-four million, five hundred sixty-three thousand, six hundred seventy".