75777413 has 2 divisors, whose sum is σ = 75777414. Its totient is φ = 75777412.

The previous prime is 75777349. The next prime is 75777437. The reversal of 75777413 is 31477757.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62694724 + 13082689 = 7918^2 + 3617^2 .

It is a cyclic number.

It is not a de Polignac number, because 75777413 - 2⁶ = 75777349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75777473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37888706 + 37888707.

It is an arithmetic number, because the mean of its divisors is an integer number (37888707).

Almost surely, 2^75777413 is an apocalyptic number.

It is an amenable number.

75777413 is a deficient number, since it is larger than the sum of its proper divisors (1).

75777413 is an equidigital number, since it uses as much as digits as its factorization.

75777413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144060, while the sum is 41.

The square root of 75777413 is about 8705.0222860140. The cubic root of 75777413 is about 423.1684280659.

The spelling of 75777413 in words is "seventy-five million, seven hundred seventy-seven thousand, four hundred thirteen".