39798890 has 8 divisors (see below), whose sum is σ = 71638020. Its totient is φ = 15919552.

The previous prime is 39798883. The next prime is 39798893. The reversal of 39798890 is 9889793.

39798890 is nontrivially palindromic in base 9.

39798890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39400729 + 398161 = 6277^2 + 631^2 .

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

It is not an unprimeable number, because it can be changed into a prime (39798893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1989935 + ... + 1989954.

Almost surely, 2^39798890 is an apocalyptic number.

39798890 is a deficient number, since it is larger than the sum of its proper divisors (31839130).

39798890 is a wasteful number, since it uses less digits than its factorization.

39798890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3979896.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 39798890 is about 6308.6361442074. The cubic root of 39798890 is about 341.4210706448.

The spelling of 39798890 in words is "thirty-nine million, seven hundred ninety-eight thousand, eight hundred ninety".