76456213 has 2 divisors, whose sum is σ = 76456214.
Its totient is φ = 76456212.
The previous prime is 76456141. The next prime is 76456217. The reversal of 76456213 is 31265467.
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., 61105489 + 15350724 = 7817^2 + 3918^2
It is an emirp because it is prime and its reverse (31265467) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-76456213 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (76456217) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38228106 + 38228107.
It is an arithmetic number, because the mean of its divisors is an integer number (38228107).
Almost surely, 276456213 is an apocalyptic number.
It is an amenable number.
76456213 is a deficient number, since it is larger than the sum of its proper divisors (1).
76456213 is an equidigital number, since it uses as much as digits as its factorization.
76456213 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 30240, while the sum is 34.
The square root of 76456213 is about 8743.9243477972.
The cubic root of 76456213 is about 424.4282285779.
The spelling of 76456213 in words is "seventy-six million, four hundred fifty-six thousand, two hundred thirteen".