670546437 has 8 divisors (see below), whose sum is σ = 975340320. Its totient is φ = 406391760.

The previous prime is 670546421. The next prime is 670546447. The reversal of 670546437 is 734645076.

It is a happy number.

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

It is not a de Polignac number, because 670546437 - 2⁴ = 670546421 is a prime.

It is a super-4 number, since 4×670546437⁴ (a number of 36 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670546417) 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, 10159762 + ... + 10159827.

It is an arithmetic number, because the mean of its divisors is an integer number (121917540).

Almost surely, 2^670546437 is an apocalyptic number.

It is an amenable number.

670546437 is a deficient number, since it is larger than the sum of its proper divisors (304793883).

670546437 is a wasteful number, since it uses less digits than its factorization.

670546437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20319603.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 670546437 is about 25894.9114113179. The cubic root of 670546437 is about 875.2718336911.

The spelling of 670546437 in words is "six hundred seventy million, five hundred forty-six thousand, four hundred thirty-seven".