3973628401 has 4 divisors (see below), whose sum is σ = 4110650100. Its totient is φ = 3836606704.

The previous prime is 3973628383. The next prime is 3973628411. The reversal of 3973628401 is 1048263793.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1372628401 + 2601000000 = 37049^2 + 51000^2 .

It is a cyclic number.

It is not a de Polignac number, because 3973628401 - 2¹¹ = 3973626353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3973628411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68510806 + ... + 68510863.

It is an arithmetic number, because the mean of its divisors is an integer number (1027662525).

Almost surely, 2^3973628401 is an apocalyptic number.

It is an amenable number.

3973628401 is a deficient number, since it is larger than the sum of its proper divisors (137021699).

3973628401 is a wasteful number, since it uses less digits than its factorization.

3973628401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137021698.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 3973628401 is about 63036.7226384748. The cubic root of 3973628401 is about 1583.9048319318.

The spelling of 3973628401 in words is "three billion, nine hundred seventy-three million, six hundred twenty-eight thousand, four hundred one".