76230421 has 2 divisors, whose sum is σ = 76230422. Its totient is φ = 76230420.

The previous prime is 76230367. The next prime is 76230449. The reversal of 76230421 is 12403267.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64224196 + 12006225 = 8014^2 + 3465^2 .

It is an emirp because it is prime and its reverse (12403267) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76230421 - 2¹⁷ = 76099349 is a prime.

It is a super-2 number, since 2×76230421² = 11622154171674482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76230481) 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, 38115210 + 38115211.

It is an arithmetic number, because the mean of its divisors is an integer number (38115211).

Almost surely, 2^76230421 is an apocalyptic number.

It is an amenable number.

76230421 is a deficient number, since it is larger than the sum of its proper divisors (1).

76230421 is an equidigital number, since it uses as much as digits as its factorization.

76230421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 76230421 is about 8731.0034360319. The cubic root of 76230421 is about 424.0100066613.

Adding to 76230421 its reverse (12403267), we get a palindrome (88633688).

The spelling of 76230421 in words is "seventy-six million, two hundred thirty thousand, four hundred twenty-one".