76721027 has 2 divisors, whose sum is σ = 76721028. Its totient is φ = 76721026.

The previous prime is 76720997. The next prime is 76721041. The reversal of 76721027 is 72012767.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76721027 - 2¹⁴ = 76704643 is a prime.

It is a super-2 number, since 2×76721027² = 11772231967869458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76720984 and 76721002.

It is not a weakly prime, because it can be changed into another prime (76723027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38360513 + 38360514.

It is an arithmetic number, because the mean of its divisors is an integer number (38360514).

Almost surely, 2^76721027 is an apocalyptic number.

76721027 is a deficient number, since it is larger than the sum of its proper divisors (1).

76721027 is an equidigital number, since it uses as much as digits as its factorization.

76721027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 76721027 is about 8759.0540014319. The cubic root of 76721027 is about 424.9176809423.

The spelling of 76721027 in words is "seventy-six million, seven hundred twenty-one thousand, twenty-seven".