39790 has 16 divisors (see below), whose sum is σ = 75168. Its totient is φ = 15136.

The previous prime is 39779. The next prime is 39791. The reversal of 39790 is 9793.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39791) 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, 144 + ... + 316.

It is an arithmetic number, because the mean of its divisors is an integer number (4698).

2³⁹⁷⁹⁰ is an apocalyptic number.

39790 is a deficient number, since it is larger than the sum of its proper divisors (35378).

39790 is a wasteful number, since it uses less digits than its factorization.

39790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 39790 is about 199.4743091228. The cubic root of 39790 is about 34.1395647328.

The spelling of 39790 in words is "thirty-nine thousand, seven hundred ninety".