34478281 has 2 divisors, whose sum is σ = 34478282. Its totient is φ = 34478280.

The previous prime is 34478273. The next prime is 34478287. The reversal of 34478281 is 18287443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30030400 + 4447881 = 5480^2 + 2109^2 .

It is a cyclic number.

It is not a de Polignac number, because 34478281 - 2³ = 34478273 is a prime.

It is a super-2 number, since 2×34478281² = 2377503721429922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34478281.

It is not a weakly prime, because it can be changed into another prime (34478287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17239140 + 17239141.

It is an arithmetic number, because the mean of its divisors is an integer number (17239141).

Almost surely, 2^34478281 is an apocalyptic number.

It is an amenable number.

34478281 is a deficient number, since it is larger than the sum of its proper divisors (1).

34478281 is an equidigital number, since it uses as much as digits as its factorization.

34478281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 37.

The square root of 34478281 is about 5871.8209271060. The cubic root of 34478281 is about 325.4731758456.

The spelling of 34478281 in words is "thirty-four million, four hundred seventy-eight thousand, two hundred eighty-one".