39829989 has 8 divisors (see below), whose sum is σ = 53382592. Its totient is φ = 26415360.

The previous prime is 39829987. The next prime is 39830027. The reversal of 39829989 is 98992893.

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

It is not a de Polignac number, because 39829989 - 2¹ = 39829987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39829981) 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, 33817 + ... + 34974.

It is an arithmetic number, because the mean of its divisors is an integer number (6672824).

Almost surely, 2^39829989 is an apocalyptic number.

It is an amenable number.

39829989 is a deficient number, since it is larger than the sum of its proper divisors (13552603).

39829989 is a wasteful number, since it uses less digits than its factorization.

39829989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68987.

The product of its digits is 2519424, while the sum is 57.

The square root of 39829989 is about 6311.1004587156. The cubic root of 39829989 is about 341.5099767212.

The spelling of 39829989 in words is "thirty-nine million, eight hundred twenty-nine thousand, nine hundred eighty-nine".