76463021 has 2 divisors, whose sum is σ = 76463022. Its totient is φ = 76463020.

The previous prime is 76462961. The next prime is 76463033. The reversal of 76463021 is 12036467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53085796 + 23377225 = 7286^2 + 4835^2 .

It is a cyclic number.

It is not a de Polignac number, because 76463021 - 2¹⁸ = 76200877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76463041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38231510 + 38231511.

It is an arithmetic number, because the mean of its divisors is an integer number (38231511).

Almost surely, 2^76463021 is an apocalyptic number.

It is an amenable number.

76463021 is a deficient number, since it is larger than the sum of its proper divisors (1).

76463021 is an equidigital number, since it uses as much as digits as its factorization.

76463021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 76463021 is about 8744.3136380164. The cubic root of 76463021 is about 424.4408258608.

Adding to 76463021 its reverse (12036467), we get a palindrome (88499488).

The spelling of 76463021 in words is "seventy-six million, four hundred sixty-three thousand, twenty-one".