39889722 has 8 divisors (see below), whose sum is σ = 79779456. Its totient is φ = 13296572.

The previous prime is 39889709. The next prime is 39889727. The reversal of 39889722 is 22798893.

It is a happy number.

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

39889722 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (39889727) 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, 3324138 + ... + 3324149.

It is an arithmetic number, because the mean of its divisors is an integer number (9972432).

Almost surely, 2^39889722 is an apocalyptic number.

39889722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39889722 is a wasteful number, since it uses less digits than its factorization.

39889722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6648292.

The product of its digits is 435456, while the sum is 48.

The square root of 39889722 is about 6315.8310617052. The cubic root of 39889722 is about 341.6806121877.

The spelling of 39889722 in words is "thirty-nine million, eight hundred eighty-nine thousand, seven hundred twenty-two".