39947098 has 4 divisors (see below), whose sum is σ = 59920650. Its totient is φ = 19973548.

The previous prime is 39947057. The next prime is 39947119. The reversal of 39947098 is 89074993.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36929929 + 3017169 = 6077^2 + 1737^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9986773 + ... + 9986776.

Almost surely, 2^39947098 is an apocalyptic number.

39947098 is a deficient number, since it is larger than the sum of its proper divisors (19973552).

39947098 is a wasteful number, since it uses less digits than its factorization.

39947098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19973551.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 39947098 is about 6320.3716662867. The cubic root of 39947098 is about 341.8443542409.

The spelling of 39947098 in words is "thirty-nine million, nine hundred forty-seven thousand, ninety-eight".