670005562 has 4 divisors (see below), whose sum is σ = 1005008346. Its totient is φ = 335002780.

The previous prime is 670005551. The next prime is 670005587. The reversal of 670005562 is 265500076.

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

It can be written as a sum of positive squares in only one way, i.e., 658384281 + 11621281 = 25659^2 + 3409^2 .

It is a super-2 number, since 2×670005562² = 897814906221871688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167501389 + ... + 167501392.

Almost surely, 2^670005562 is an apocalyptic number.

670005562 is a deficient number, since it is larger than the sum of its proper divisors (335002784).

670005562 is a wasteful number, since it uses less digits than its factorization.

670005562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335002783.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 670005562 is about 25884.4656502699. The cubic root of 670005562 is about 875.0364336394.

The spelling of 670005562 in words is "six hundred seventy million, five thousand, five hundred sixty-two".