74689061 has 2 divisors, whose sum is σ = 74689062. Its totient is φ = 74689060.

The previous prime is 74688983. The next prime is 74689079. The reversal of 74689061 is 16098647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38316100 + 36372961 = 6190^2 + 6031^2 .

It is a cyclic number.

It is not a de Polignac number, because 74689061 - 2¹⁰ = 74688037 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 (74689091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37344530 + 37344531.

It is an arithmetic number, because the mean of its divisors is an integer number (37344531).

Almost surely, 2^74689061 is an apocalyptic number.

It is an amenable number.

74689061 is a deficient number, since it is larger than the sum of its proper divisors (1).

74689061 is an equidigital number, since it uses as much as digits as its factorization.

74689061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 74689061 is about 8642.2833209748. The cubic root of 74689061 is about 421.1327340471.

The spelling of 74689061 in words is "seventy-four million, six hundred eighty-nine thousand, sixty-one".