670632629 has 4 divisors (see below), whose sum is σ = 674379360. Its totient is φ = 666885900.

The previous prime is 670632581. The next prime is 670632631. The reversal of 670632629 is 926236076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 670632629 - 2²⁰ = 669584053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670632029) 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, 1873097 + ... + 1873454.

It is an arithmetic number, because the mean of its divisors is an integer number (168594840).

Almost surely, 2^670632629 is an apocalyptic number.

It is an amenable number.

670632629 is a deficient number, since it is larger than the sum of its proper divisors (3746731).

670632629 is a wasteful number, since it uses less digits than its factorization.

670632629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746730.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 670632629 is about 25896.5756230433. The cubic root of 670632629 is about 875.3093345479.

The spelling of 670632629 in words is "six hundred seventy million, six hundred thirty-two thousand, six hundred twenty-nine".