654434234 has 8 divisors (see below), whose sum is σ = 982885428. Its totient is φ = 326805760.

The previous prime is 654434219. The next prime is 654434237. The reversal of 654434234 is 432434456.

It can be written as a sum of positive squares in 2 ways, for example, as 582981025 + 71453209 = 24145^2 + 8453^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 654434194 and 654434203.

It is not an unprimeable number, because it can be changed into a prime (654434237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203687 + ... + 206874.

Almost surely, 2^654434234 is an apocalyptic number.

654434234 is a deficient number, since it is larger than the sum of its proper divisors (328451194).

654434234 is a wasteful number, since it uses less digits than its factorization.

654434234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411360.

The product of its digits is 138240, while the sum is 35.

The square root of 654434234 is about 25581.9122428328. The cubic root of 654434234 is about 868.2044413920.

The spelling of 654434234 in words is "six hundred fifty-four million, four hundred thirty-four thousand, two hundred thirty-four".