77290027 has 2 divisors, whose sum is σ = 77290028. Its totient is φ = 77290026.

The previous prime is 77289983. The next prime is 77290033. The reversal of 77290027 is 72009277.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77290027 - 2⁷ = 77289899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77289974 and 77290001.

It is not a weakly prime, because it can be changed into another prime (77294027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38645013 + 38645014.

It is an arithmetic number, because the mean of its divisors is an integer number (38645014).

Almost surely, 2^77290027 is an apocalyptic number.

77290027 is a deficient number, since it is larger than the sum of its proper divisors (1).

77290027 is an equidigital number, since it uses as much as digits as its factorization.

77290027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 77290027 is about 8791.4746772086. The cubic root of 77290027 is about 425.9655592367.

The spelling of 77290027 in words is "seventy-seven million, two hundred ninety thousand, twenty-seven".