3201427643 has 4 divisors (see below), whose sum is σ = 3202741608. Its totient is φ = 3200113680.

The previous prime is 3201427631. The next prime is 3201427651. The reversal of 3201427643 is 3467241023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3467241023 = 59 ⋅58766797.

It is a cyclic number.

It is not a de Polignac number, because 3201427643 - 2¹⁰ = 3201426619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3201427613) 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, 653321 + ... + 658202.

It is an arithmetic number, because the mean of its divisors is an integer number (800685402).

Almost surely, 2^3201427643 is an apocalyptic number.

3201427643 is a deficient number, since it is larger than the sum of its proper divisors (1313965).

3201427643 is a wasteful number, since it uses less digits than its factorization.

3201427643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313964.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 3201427643 is about 56581.1597883960. The cubic root of 3201427643 is about 1473.8317119487.

Adding to 3201427643 its reverse (3467241023), we get a palindrome (6668668666).

The spelling of 3201427643 in words is "three billion, two hundred one million, four hundred twenty-seven thousand, six hundred forty-three".