73412777 has 2 divisors, whose sum is σ = 73412778. Its totient is φ = 73412776.

The previous prime is 73412701. The next prime is 73412797. The reversal of 73412777 is 77721437.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70627216 + 2785561 = 8404^2 + 1669^2 .

It is a cyclic number.

It is not a de Polignac number, because 73412777 - 2¹⁸ = 73150633 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 73412777.

It is not a weakly prime, because it can be changed into another prime (73412797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36706388 + 36706389.

It is an arithmetic number, because the mean of its divisors is an integer number (36706389).

Almost surely, 2^73412777 is an apocalyptic number.

It is an amenable number.

73412777 is a deficient number, since it is larger than the sum of its proper divisors (1).

73412777 is an equidigital number, since it uses as much as digits as its factorization.

73412777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57624, while the sum is 38.

The square root of 73412777 is about 8568.1256410022. The cubic root of 73412777 is about 418.7201724652.

The spelling of 73412777 in words is "seventy-three million, four hundred twelve thousand, seven hundred seventy-seven".