39800798 has 4 divisors (see below), whose sum is σ = 59701200. Its totient is φ = 19900398.

The previous prime is 39800797. The next prime is 39800809. The reversal of 39800798 is 89700893.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39800797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9950198 + ... + 9950201.

It is an arithmetic number, because the mean of its divisors is an integer number (14925300).

Almost surely, 2^39800798 is an apocalyptic number.

39800798 is a deficient number, since it is larger than the sum of its proper divisors (19900402).

39800798 is a wasteful number, since it uses less digits than its factorization.

39800798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19900401.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 39800798 is about 6308.7873636698. The cubic root of 39800798 is about 341.4265265842.

The spelling of 39800798 in words is "thirty-nine million, eight hundred thousand, seven hundred ninety-eight".