654863479 has 4 divisors (see below), whose sum is σ = 665962920. Its totient is φ = 643764040.

The previous prime is 654863453. The next prime is 654863491. The reversal of 654863479 is 974368456.

654863479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 654863479 - 2⁷ = 654863351 is a prime.

It is a super-2 number, since 2×654863479² = 857692352255966882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654863449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5549632 + ... + 5549749.

It is an arithmetic number, because the mean of its divisors is an integer number (166490730).

Almost surely, 2^654863479 is an apocalyptic number.

654863479 is a deficient number, since it is larger than the sum of its proper divisors (11099441).

654863479 is a wasteful number, since it uses less digits than its factorization.

654863479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11099440.

The product of its digits is 4354560, while the sum is 52.

The square root of 654863479 is about 25590.3004867078. The cubic root of 654863479 is about 868.3942190385.

The spelling of 654863479 in words is "six hundred fifty-four million, eight hundred sixty-three thousand, four hundred seventy-nine".