3428247581 has 16 divisors (see below), whose sum is σ = 3791266560. Its totient is φ = 3073873920.

The previous prime is 3428247553. The next prime is 3428247583. The reversal of 3428247581 is 1857428243.

3428247581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3428247581 - 2⁶ = 3428247517 is a prime.

It is a super-2 number, since 2×3428247581² = 23505762953264703122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428247583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1243901 + ... + 1246653.

It is an arithmetic number, because the mean of its divisors is an integer number (236954160).

Almost surely, 2^3428247581 is an apocalyptic number.

It is an amenable number.

3428247581 is a deficient number, since it is larger than the sum of its proper divisors (363018979).

3428247581 is a wasteful number, since it uses less digits than its factorization.

3428247581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276.

The product of its digits is 430080, while the sum is 44.

The square root of 3428247581 is about 58551.2389365076. The cubic root of 3428247581 is about 1507.8474044208.

The spelling of 3428247581 in words is "three billion, four hundred twenty-eight million, two hundred forty-seven thousand, five hundred eighty-one".