75606913 has 2 divisors, whose sum is σ = 75606914. Its totient is φ = 75606912.

The previous prime is 75606893. The next prime is 75606917. The reversal of 75606913 is 31960657.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72046144 + 3560769 = 8488^2 + 1887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75606913 is a prime.

It is not a weakly prime, because it can be changed into another prime (75606917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37803456 + 37803457.

It is an arithmetic number, because the mean of its divisors is an integer number (37803457).

Almost surely, 2^75606913 is an apocalyptic number.

It is an amenable number.

75606913 is a deficient number, since it is larger than the sum of its proper divisors (1).

75606913 is an equidigital number, since it uses as much as digits as its factorization.

75606913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 75606913 is about 8695.2235738939. The cubic root of 75606913 is about 422.8508118845.

The spelling of 75606913 in words is "seventy-five million, six hundred six thousand, nine hundred thirteen".