76021213 has 2 divisors, whose sum is σ = 76021214. Its totient is φ = 76021212.

The previous prime is 76021201. The next prime is 76021237. The reversal of 76021213 is 31212067.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76003524 + 17689 = 8718^2 + 133^2 .

It is a cyclic number.

It is not a de Polignac number, because 76021213 - 2⁵ = 76021181 is a prime.

It is a super-3 number, since 3×76021213³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76021243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38010606 + 38010607.

It is an arithmetic number, because the mean of its divisors is an integer number (38010607).

Almost surely, 2^76021213 is an apocalyptic number.

It is an amenable number.

76021213 is a deficient number, since it is larger than the sum of its proper divisors (1).

76021213 is an equidigital number, since it uses as much as digits as its factorization.

76021213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 76021213 is about 8719.0144511866. The cubic root of 76021213 is about 423.6217646391.

The spelling of 76021213 in words is "seventy-six million, twenty-one thousand, two hundred thirteen".