5671213897 has 2 divisors, whose sum is σ = 5671213898. Its totient is φ = 5671213896.

The previous prime is 5671213789. The next prime is 5671213973. The reversal of 5671213897 is 7983121765.

It is a happy number.

Together with previous prime (5671213789) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4879860736 + 791353161 = 69856^2 + 28131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5671213897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5671213897.

It is not a weakly prime, because it can be changed into another prime (5671213397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2835606948 + 2835606949.

It is an arithmetic number, because the mean of its divisors is an integer number (2835606949).

Almost surely, 2^5671213897 is an apocalyptic number.

It is an amenable number.

5671213897 is a deficient number, since it is larger than the sum of its proper divisors (1).

5671213897 is an equidigital number, since it uses as much as digits as its factorization.

5671213897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 49.

The square root of 5671213897 is about 75307.4624257118. The cubic root of 5671213897 is about 1783.3038308761.

The spelling of 5671213897 in words is "five billion, six hundred seventy-one million, two hundred thirteen thousand, eight hundred ninety-seven".