7211424487 has 2 divisors, whose sum is σ = 7211424488. Its totient is φ = 7211424486.

The previous prime is 7211424457. The next prime is 7211424491. The reversal of 7211424487 is 7844241127.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7211424487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7211424457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605712243 + 3605712244.

It is an arithmetic number, because the mean of its divisors is an integer number (3605712244).

Almost surely, 2^7211424487 is an apocalyptic number.

7211424487 is a deficient number, since it is larger than the sum of its proper divisors (1).

7211424487 is an equidigital number, since it uses as much as digits as its factorization.

7211424487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100352, while the sum is 40.

The square root of 7211424487 is about 84920.1064942808. The cubic root of 7211424487 is about 1931.9995462530. Note that the first 3 decimals are identical.

The spelling of 7211424487 in words is "seven billion, two hundred eleven million, four hundred twenty-four thousand, four hundred eighty-seven".