77494097 has 2 divisors, whose sum is σ = 77494098. Its totient is φ = 77494096.

The previous prime is 77494093. The next prime is 77494111. The reversal of 77494097 is 79049477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59845696 + 17648401 = 7736^2 + 4201^2 .

It is a cyclic number.

It is not a de Polignac number, because 77494097 - 2² = 77494093 is a prime.

It is not a weakly prime, because it can be changed into another prime (77494093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38747048 + 38747049.

It is an arithmetic number, because the mean of its divisors is an integer number (38747049).

Almost surely, 2^77494097 is an apocalyptic number.

It is an amenable number.

77494097 is a deficient number, since it is larger than the sum of its proper divisors (1).

77494097 is an equidigital number, since it uses as much as digits as its factorization.

77494097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 77494097 is about 8803.0731565744. The cubic root of 77494097 is about 426.3401241595.

The spelling of 77494097 in words is "seventy-seven million, four hundred ninety-four thousand, ninety-seven".