77494033 has 2 divisors, whose sum is σ = 77494034. Its totient is φ = 77494032.

The previous prime is 77494013. The next prime is 77494049. The reversal of 77494033 is 33049477.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68690944 + 8803089 = 8288^2 + 2967^2 .

It is an emirp because it is prime and its reverse (33049477) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77494033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77493983 and 77494001.

It is not a weakly prime, because it can be changed into another prime (77494013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38747016 + 38747017.

It is an arithmetic number, because the mean of its divisors is an integer number (38747017).

Almost surely, 2^77494033 is an apocalyptic number.

It is an amenable number.

77494033 is a deficient number, since it is larger than the sum of its proper divisors (1).

77494033 is an equidigital number, since it uses as much as digits as its factorization.

77494033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 77494033 is about 8803.0695214794. The cubic root of 77494033 is about 426.3400067924.

The spelling of 77494033 in words is "seventy-seven million, four hundred ninety-four thousand, thirty-three".