670004437 has 8 divisors (see below), whose sum is σ = 672803712. Its totient is φ = 667212000.

The previous prime is 670004431. The next prime is 670004441. The reversal of 670004437 is 734400076.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670004437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 670004399 and 670004408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670004431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283812 + ... + 286162.

It is an arithmetic number, because the mean of its divisors is an integer number (84100464).

Almost surely, 2^670004437 is an apocalyptic number.

It is an amenable number.

670004437 is a deficient number, since it is larger than the sum of its proper divisors (2799275).

670004437 is a wasteful number, since it uses less digits than its factorization.

670004437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 670004437 is about 25884.4439190800. The cubic root of 670004437 is about 875.0359438840.

The spelling of 670004437 in words is "six hundred seventy million, four thousand, four hundred thirty-seven".