662889434 has 8 divisors (see below), whose sum is σ = 995754708. Its totient is φ = 330971200.

The previous prime is 662889407. The next prime is 662889467. The reversal of 662889434 is 434988266.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 626250625 + 36638809 = 25025^2 + 6053^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235007 + ... + 237810.

Almost surely, 2^662889434 is an apocalyptic number.

662889434 is a deficient number, since it is larger than the sum of its proper divisors (332865274).

662889434 is a wasteful number, since it uses less digits than its factorization.

662889434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473520.

The product of its digits is 1990656, while the sum is 50.

The square root of 662889434 is about 25746.6392758356. The cubic root of 662889434 is about 871.9274806075.

The spelling of 662889434 in words is "six hundred sixty-two million, eight hundred eighty-nine thousand, four hundred thirty-four".