39670 has 8 divisors (see below), whose sum is σ = 71424. Its totient is φ = 15864.

The previous prime is 39667. The next prime is 39671. The reversal of 39670 is 7693.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1974 + ... + 1993.

It is an arithmetic number, because the mean of its divisors is an integer number (8928).

2³⁹⁶⁷⁰ is an apocalyptic number.

39670 is a deficient number, since it is larger than the sum of its proper divisors (31754).

39670 is a wasteful number, since it uses less digits than its factorization.

39670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 39670 is about 199.1732913822. The cubic root of 39670 is about 34.1052104306.

Adding to 39670 its product of nonzero digits (1134), we get a palindrome (40804).

The spelling of 39670 in words is "thirty-nine thousand, six hundred seventy".