7850087213 has 2 divisors, whose sum is σ = 7850087214. Its totient is φ = 7850087212.

The previous prime is 7850087183. The next prime is 7850087237. The reversal of 7850087213 is 3127800587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4366962889 + 3483124324 = 66083^2 + 59018^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7850087213 is a prime.

It is a super-2 number, since 2×7850087213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7850086213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3925043606 + 3925043607.

It is an arithmetic number, because the mean of its divisors is an integer number (3925043607).

Almost surely, 2^7850087213 is an apocalyptic number.

It is an amenable number.

7850087213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7850087213 is an equidigital number, since it uses as much as digits as its factorization.

7850087213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 7850087213 is about 88600.7179034120. The cubic root of 7850087213 is about 1987.4284108966.

The spelling of 7850087213 in words is "seven billion, eight hundred fifty million, eighty-seven thousand, two hundred thirteen".