77294401 has 2 divisors, whose sum is σ = 77294402. Its totient is φ = 77294400.

The previous prime is 77294383. The next prime is 77294417. The reversal of 77294401 is 10449277.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52940176 + 24354225 = 7276^2 + 4935^2 .

It is an emirp because it is prime and its reverse (10449277) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77294401 is a prime.

It is not a weakly prime, because it can be changed into another prime (77294431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38647200 + 38647201.

It is an arithmetic number, because the mean of its divisors is an integer number (38647201).

Almost surely, 2^77294401 is an apocalyptic number.

It is an amenable number.

77294401 is a deficient number, since it is larger than the sum of its proper divisors (1).

77294401 is an equidigital number, since it uses as much as digits as its factorization.

77294401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 77294401 is about 8791.7234374154. The cubic root of 77294401 is about 425.9735945046.

The spelling of 77294401 in words is "seventy-seven million, two hundred ninety-four thousand, four hundred one".