3278146997 has 2 divisors, whose sum is σ = 3278146998. Its totient is φ = 3278146996.

The previous prime is 3278146933. The next prime is 3278146999. The reversal of 3278146997 is 7996418723.

3278146997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1843328356 + 1434818641 = 42934^2 + 37879^2 .

It is a cyclic number.

It is not a de Polignac number, because 3278146997 - 2⁶ = 3278146933 is a prime.

It is a super-3 number, since 3×3278146997³ (a number of 30 digits) contains 333 as substring.

Together with 3278146999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3278146999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1639073498 + 1639073499.

It is an arithmetic number, because the mean of its divisors is an integer number (1639073499).

Almost surely, 2^3278146997 is an apocalyptic number.

It is an amenable number.

3278146997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3278146997 is an equidigital number, since it uses as much as digits as its factorization.

3278146997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 56.

The square root of 3278146997 is about 57255.1045497255. The cubic root of 3278146997 is about 1485.5119212134.

The spelling of 3278146997 in words is "three billion, two hundred seventy-eight million, one hundred forty-six thousand, nine hundred ninety-seven".