3481889779 has 4 divisors (see below), whose sum is σ = 3540904920. Its totient is φ = 3422874640.

The previous prime is 3481889743. The next prime is 3481889791. The reversal of 3481889779 is 9779881843.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3481889779 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3481889779.

It is not an unprimeable number, because it can be changed into a prime (3481881779) 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, 29507482 + ... + 29507599.

It is an arithmetic number, because the mean of its divisors is an integer number (885226230).

Almost surely, 2^3481889779 is an apocalyptic number.

3481889779 is a deficient number, since it is larger than the sum of its proper divisors (59015141).

3481889779 is an equidigital number, since it uses as much as digits as its factorization.

3481889779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59015140.

The product of its digits is 24385536, while the sum is 64.

The square root of 3481889779 is about 59007.5400182045. The cubic root of 3481889779 is about 1515.6712277247.

The spelling of 3481889779 in words is "three billion, four hundred eighty-one million, eight hundred eighty-nine thousand, seven hundred seventy-nine".