3478376689 has 4 divisors (see below), whose sum is σ = 3478778100. Its totient is φ = 3477975280.

The previous prime is 3478376677. The next prime is 3478376719. The reversal of 3478376689 is 9866738743.

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 3206390625 + 271986064 = 56625^2 + 16492^2 .

It is a cyclic number.

It is not a de Polignac number, because 3478376689 - 2²⁵ = 3444822257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3478376639) 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, 187414 + ... + 205135.

It is an arithmetic number, because the mean of its divisors is an integer number (869694525).

Almost surely, 2^3478376689 is an apocalyptic number.

It is an amenable number.

3478376689 is a deficient number, since it is larger than the sum of its proper divisors (401411).

3478376689 is an equidigital number, since it uses as much as digits as its factorization.

3478376689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401410.

The product of its digits is 36578304, while the sum is 61.

The square root of 3478376689 is about 58977.7643608165. The cubic root of 3478376689 is about 1515.1613052806.

The spelling of 3478376689 in words is "three billion, four hundred seventy-eight million, three hundred seventy-six thousand, six hundred eighty-nine".