3497311021 has 2 divisors, whose sum is σ = 3497311022. Its totient is φ = 3497311020.

The previous prime is 3497310979. The next prime is 3497311033. The reversal of 3497311021 is 1201137943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3468032100 + 29278921 = 58890^2 + 5411^2 .

It is an emirp because it is prime and its reverse (1201137943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3497311021 - 2⁷ = 3497310893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3497351021) 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, 1748655510 + 1748655511.

It is an arithmetic number, because the mean of its divisors is an integer number (1748655511).

Almost surely, 2^3497311021 is an apocalyptic number.

It is an amenable number.

3497311021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3497311021 is an equidigital number, since it uses as much as digits as its factorization.

3497311021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 3497311021 is about 59138.0674439062. The cubic root of 3497311021 is about 1517.9055613686.

Adding to 3497311021 its reverse (1201137943), we get a palindrome (4698448964).

The spelling of 3497311021 in words is "three billion, four hundred ninety-seven million, three hundred eleven thousand, twenty-one".