3479881897 has 6 divisors (see below), whose sum is σ = 3546781742. Its totient is φ = 3414220992.

The previous prime is 3479881879. The next prime is 3479881919. The reversal of 3479881897 is 7981889743.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2486119321 + 993762576 = 49861^2 + 31524^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3479881897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3479881817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616608 + ... + 622225.

Almost surely, 2^3479881897 is an apocalyptic number.

It is an amenable number.

3479881897 is a deficient number, since it is larger than the sum of its proper divisors (66899845).

3479881897 is an equidigital number, since it uses as much as digits as its factorization.

3479881897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238939 (or 1238886 counting only the distinct ones).

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

The square root of 3479881897 is about 58990.5237898427. The cubic root of 3479881897 is about 1515.3798271403.

The spelling of 3479881897 in words is "three billion, four hundred seventy-nine million, eight hundred eighty-one thousand, eight hundred ninety-seven".