3489629891 has 8 divisors (see below), whose sum is σ = 3844561968. Its totient is φ = 3140980000.

The previous prime is 3489629879. The next prime is 3489629903. The reversal of 3489629891 is 1989269843.

It is an interprime number because it is at equal distance from previous prime (3489629879) and next prime (3489629903).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3489629891 - 2¹⁰ = 3489628867 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 3489629891.

It is not an unprimeable number, because it can be changed into a prime (3489622891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569380 + ... + 1571601.

It is an arithmetic number, because the mean of its divisors is an integer number (480570246).

Almost surely, 2^3489629891 is an apocalyptic number.

3489629891 is a deficient number, since it is larger than the sum of its proper divisors (354932077).

3489629891 is a wasteful number, since it uses less digits than its factorization.

3489629891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141093.

The product of its digits is 6718464, while the sum is 59.

The square root of 3489629891 is about 59073.0893977960. The cubic root of 3489629891 is about 1516.7934902172.

It can be divided in two parts, 348962 and 9891, that added together give a palindrome (358853).

The spelling of 3489629891 in words is "three billion, four hundred eighty-nine million, six hundred twenty-nine thousand, eight hundred ninety-one".