77229673 has 2 divisors, whose sum is σ = 77229674. Its totient is φ = 77229672.

The previous prime is 77229667. The next prime is 77229679. The reversal of 77229673 is 37692277.

It is a balanced prime because it is at equal distance from previous prime (77229667) and next prime (77229679).

It can be written as a sum of positive squares in only one way, i.e., 77228944 + 729 = 8788^2 + 27^2 .

It is a cyclic number.

It is not a de Polignac number, because 77229673 - 2⁵ = 77229641 is a prime.

It is not a weakly prime, because it can be changed into another prime (77229679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38614836 + 38614837.

It is an arithmetic number, because the mean of its divisors is an integer number (38614837).

Almost surely, 2^77229673 is an apocalyptic number.

It is an amenable number.

77229673 is a deficient number, since it is larger than the sum of its proper divisors (1).

77229673 is an equidigital number, since it uses as much as digits as its factorization.

77229673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 43.

The square root of 77229673 is about 8788.0414769162. The cubic root of 77229673 is about 425.8546548029.

The spelling of 77229673 in words is "seventy-seven million, two hundred twenty-nine thousand, six hundred seventy-three".