76405093 has 2 divisors, whose sum is σ = 76405094. Its totient is φ = 76405092.

The previous prime is 76405079. The next prime is 76405097. The reversal of 76405093 is 39050467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58706244 + 17698849 = 7662^2 + 4207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76405093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76405097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38202546 + 38202547.

It is an arithmetic number, because the mean of its divisors is an integer number (38202547).

Almost surely, 2^76405093 is an apocalyptic number.

It is an amenable number.

76405093 is a deficient number, since it is larger than the sum of its proper divisors (1).

76405093 is an equidigital number, since it uses as much as digits as its factorization.

76405093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 76405093 is about 8741.0006864203. Note that the first 3 decimals coincide. The cubic root of 76405093 is about 424.3336140371. Note that the first 3 decimals are identical.

The spelling of 76405093 in words is "seventy-six million, four hundred five thousand, ninety-three".