76906189 has 2 divisors, whose sum is σ = 76906190. Its totient is φ = 76906188.

The previous prime is 76906163. The next prime is 76906213. The reversal of 76906189 is 98160967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56746089 + 20160100 = 7533^2 + 4490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76906189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76900189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38453094 + 38453095.

It is an arithmetic number, because the mean of its divisors is an integer number (38453095).

Almost surely, 2^76906189 is an apocalyptic number.

It is an amenable number.

76906189 is a deficient number, since it is larger than the sum of its proper divisors (1).

76906189 is an equidigital number, since it uses as much as digits as its factorization.

76906189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 76906189 is about 8769.6173804790. The cubic root of 76906189 is about 425.2592448305.

The spelling of 76906189 in words is "seventy-six million, nine hundred six thousand, one hundred eighty-nine".