77322541 has 2 divisors, whose sum is σ = 77322542. Its totient is φ = 77322540.

The previous prime is 77322517. The next prime is 77322547. The reversal of 77322541 is 14522377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58216900 + 19105641 = 7630^2 + 4371^2 .

It is an emirp because it is prime and its reverse (14522377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77322541 - 2²³ = 68933933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77322547) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38661270 + 38661271.

It is an arithmetic number, because the mean of its divisors is an integer number (38661271).

Almost surely, 2^77322541 is an apocalyptic number.

It is an amenable number.

77322541 is a deficient number, since it is larger than the sum of its proper divisors (1).

77322541 is an equidigital number, since it uses as much as digits as its factorization.

77322541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 31.

The square root of 77322541 is about 8793.3236605961. The cubic root of 77322541 is about 426.0252819163.

The spelling of 77322541 in words is "seventy-seven million, three hundred twenty-two thousand, five hundred forty-one".