654421477 has 4 divisors (see below), whose sum is σ = 692916876. Its totient is φ = 615926080.

The previous prime is 654421441. The next prime is 654421487. The reversal of 654421477 is 774124456.

654421477 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 can be written as a sum of positive squares in 2 ways, for example, as 387066276 + 267355201 = 19674^2 + 16351^2 .

It is a cyclic number.

It is not a de Polignac number, because 654421477 - 2²³ = 646032869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654421487) 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, 19247674 + ... + 19247707.

It is an arithmetic number, because the mean of its divisors is an integer number (173229219).

Almost surely, 2^654421477 is an apocalyptic number.

It is an amenable number.

654421477 is a deficient number, since it is larger than the sum of its proper divisors (38495399).

654421477 is a wasteful number, since it uses less digits than its factorization.

654421477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38495398.

The product of its digits is 188160, while the sum is 40.

The square root of 654421477 is about 25581.6629052921. The cubic root of 654421477 is about 868.1988000021.

The spelling of 654421477 in words is "six hundred fifty-four million, four hundred twenty-one thousand, four hundred seventy-seven".