654384431 has 16 divisors (see below), whose sum is σ = 702839808. Its totient is φ = 607807200.

The previous prime is 654384373. The next prime is 654384439. The reversal of 654384431 is 134483456.

It is a happy number.

It is not a de Polignac number, because 654384431 - 2¹⁰ = 654383407 is a prime.

It is a super-2 number, since 2×654384431² = 856437967070387522, 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 (654384439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139301 + ... + 143921.

It is an arithmetic number, because the mean of its divisors is an integer number (43927488).

Almost surely, 2^654384431 is an apocalyptic number.

654384431 is a deficient number, since it is larger than the sum of its proper divisors (48455377).

654384431 is a wasteful number, since it uses less digits than its factorization.

654384431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822.

The product of its digits is 138240, while the sum is 38.

The square root of 654384431 is about 25580.9388217086. The cubic root of 654384431 is about 868.1824171353.

The spelling of 654384431 in words is "six hundred fifty-four million, three hundred eighty-four thousand, four hundred thirty-one".