7212487 has 2 divisors, whose sum is σ = 7212488. Its totient is φ = 7212486.

The previous prime is 7212397. The next prime is 7212493. The reversal of 7212487 is 7842127.

It is a strong prime.

It is an emirp because it is prime and its reverse (7842127) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7212487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7212497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606243 + 3606244.

It is an arithmetic number, because the mean of its divisors is an integer number (3606244).

Almost surely, 2^7212487 is an apocalyptic number.

7212487 is a deficient number, since it is larger than the sum of its proper divisors (1).

7212487 is an equidigital number, since it uses as much as digits as its factorization.

7212487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272, while the sum is 31.

The square root of 7212487 is about 2685.6073800911. The cubic root of 7212487 is about 193.2094426898.

The spelling of 7212487 in words is "seven million, two hundred twelve thousand, four hundred eighty-seven".