3237428993 has 4 divisors (see below), whose sum is σ = 3239105748. Its totient is φ = 3235752240.

The previous prime is 3237428969. The next prime is 3237429031. The reversal of 3237428993 is 3998247323.

It is a happy number.

3237428993 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.

It can be written as a sum of positive squares in 2 ways, for example, as 2717224129 + 520204864 = 52127^2 + 22808^2 .

It is a cyclic number.

It is not a de Polignac number, because 3237428993 - 2¹⁰ = 3237427969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3239428993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835478 + ... + 839343.

It is an arithmetic number, because the mean of its divisors is an integer number (809776437).

Almost surely, 2^3237428993 is an apocalyptic number.

It is an amenable number.

3237428993 is a deficient number, since it is larger than the sum of its proper divisors (1676755).

3237428993 is a wasteful number, since it uses less digits than its factorization.

3237428993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676754.

The product of its digits is 1959552, while the sum is 50.

The square root of 3237428993 is about 56898.4094065906. The cubic root of 3237428993 is about 1479.3357429692.

The spelling of 3237428993 in words is "three billion, two hundred thirty-seven million, four hundred twenty-eight thousand, nine hundred ninety-three".