77229541 has 2 divisors, whose sum is σ = 77229542. Its totient is φ = 77229540.

The previous prime is 77229517. The next prime is 77229553. The reversal of 77229541 is 14592277.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71893441 + 5336100 = 8479^2 + 2310^2 .

It is a cyclic number.

It is not a de Polignac number, because 77229541 - 2¹³ = 77221349 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77229541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77229041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38614770 + 38614771.

It is an arithmetic number, because the mean of its divisors is an integer number (38614771).

Almost surely, 2^77229541 is an apocalyptic number.

It is an amenable number.

77229541 is a deficient number, since it is larger than the sum of its proper divisors (1).

77229541 is an equidigital number, since it uses as much as digits as its factorization.

77229541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 37.

The square root of 77229541 is about 8788.0339667072. The cubic root of 77229541 is about 425.8544121809.

The spelling of 77229541 in words is "seventy-seven million, two hundred twenty-nine thousand, five hundred forty-one".