3478261 has 2 divisors, whose sum is σ = 3478262. Its totient is φ = 3478260.

The previous prime is 3478247. The next prime is 3478271. The reversal of 3478261 is 1628743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3478225 + 36 = 1865^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 3478261 - 2⁵ = 3478229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3478201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1739130 + 1739131.

It is an arithmetic number, because the mean of its divisors is an integer number (1739131).

Almost surely, 2^3478261 is an apocalyptic number.

It is an amenable number.

3478261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3478261 is an equidigital number, since it uses as much as digits as its factorization.

3478261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 3478261 is about 1865.0096514496. The cubic root of 3478261 is about 151.5144507269.

It can be divided in two parts, 34782 and 61, that added together give a palindrome (34843).

The spelling of 3478261 in words is "three million, four hundred seventy-eight thousand, two hundred sixty-one".