3497471993 has 2 divisors, whose sum is σ = 3497471994. Its totient is φ = 3497471992.

The previous prime is 3497471981. The next prime is 3497472001. The reversal of 3497471993 is 3991747943.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3484777024 + 12694969 = 59032^2 + 3563^2 .

It is a cyclic number.

It is not a de Polignac number, because 3497471993 - 2⁸ = 3497471737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3497471293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1748735996 + 1748735997.

It is an arithmetic number, because the mean of its divisors is an integer number (1748735997).

Almost surely, 2^3497471993 is an apocalyptic number.

It is an amenable number.

3497471993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3497471993 is an equidigital number, since it uses as much as digits as its factorization.

3497471993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5143824, while the sum is 56.

The square root of 3497471993 is about 59139.4284128618. The cubic root of 3497471993 is about 1517.9288494075.

The spelling of 3497471993 in words is "three billion, four hundred ninety-seven million, four hundred seventy-one thousand, nine hundred ninety-three".