3478687397 has 2 divisors, whose sum is σ = 3478687398. Its totient is φ = 3478687396.

The previous prime is 3478687361. The next prime is 3478687411. The reversal of 3478687397 is 7937868743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3290284321 + 188403076 = 57361^2 + 13726^2 .

It is a cyclic number.

It is not a de Polignac number, because 3478687397 - 2¹⁴ = 3478671013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3478687357) 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 as a sum of consecutive naturals, namely, 1739343698 + 1739343699.

It is an arithmetic number, because the mean of its divisors is an integer number (1739343699).

Almost surely, 2^3478687397 is an apocalyptic number.

It is an amenable number.

3478687397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3478687397 is an equidigital number, since it uses as much as digits as its factorization.

3478687397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42674688, while the sum is 62.

The square root of 3478687397 is about 58980.3984133712. The cubic root of 3478687397 is about 1515.2064181559.

The spelling of 3478687397 in words is "three billion, four hundred seventy-eight million, six hundred eighty-seven thousand, three hundred ninety-seven".