39801002 has 4 divisors (see below), whose sum is σ = 59701506. Its totient is φ = 19900500.

The previous prime is 39800989. The next prime is 39801019. The reversal of 39801002 is 20010893.

39801002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20010893 = 7 ⋅2858699.

It can be written as a sum of positive squares in only one way, i.e., 33744481 + 6056521 = 5809^2 + 2461^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9950249 + ... + 9950252.

Almost surely, 2^39801002 is an apocalyptic number.

39801002 is a deficient number, since it is larger than the sum of its proper divisors (19900504).

39801002 is a wasteful number, since it uses less digits than its factorization.

39801002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19900503.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 39801002 is about 6308.8035315740. The cubic root of 39801002 is about 341.4271099133.

Adding to 39801002 its reverse (20010893), we get a palindrome (59811895).

The spelling of 39801002 in words is "thirty-nine million, eight hundred one thousand, two".