39261989 has 8 divisors (see below), whose sum is σ = 44120832. Its totient is φ = 34665840.

The previous prime is 39261983. The next prime is 39261991. The reversal of 39261989 is 98916293.

39261989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 39261989 - 2¹² = 39257893 is a prime.

It is a super-2 number, since 2×39261989² = 3083007560472242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39261983) 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 7 ways as a sum of consecutive naturals, for example, 65357 + ... + 65954.

It is an arithmetic number, because the mean of its divisors is an integer number (5515104).

Almost surely, 2^39261989 is an apocalyptic number.

It is an amenable number.

39261989 is a deficient number, since it is larger than the sum of its proper divisors (4858843).

39261989 is a wasteful number, since it uses less digits than its factorization.

39261989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131347.

The product of its digits is 209952, while the sum is 47.

The square root of 39261989 is about 6265.9387963816. The cubic root of 39261989 is about 339.8788178286.

The spelling of 39261989 in words is "thirty-nine million, two hundred sixty-one thousand, nine hundred eighty-nine".