39078906 has 16 divisors (see below), whose sum is σ = 78465024. Its totient is φ = 12975104.

The previous prime is 39078901. The next prime is 39078911. The reversal of 39078906 is 60987093.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (39078901) and next prime (39078911).

It is not an unprimeable number, because it can be changed into a prime (39078901) 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, 11130 + ... + 14213.

It is an arithmetic number, because the mean of its divisors is an integer number (4904064).

Almost surely, 2^39078906 is an apocalyptic number.

39078906 is an abundant number, since it is smaller than the sum of its proper divisors (39386118).

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

39078906 is a wasteful number, since it uses less digits than its factorization.

39078906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25605.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 39078906 is about 6251.3123422206. The cubic root of 39078906 is about 339.3496970102.

The spelling of 39078906 in words is "thirty-nine million, seventy-eight thousand, nine hundred six".