74992529 has 2 divisors, whose sum is σ = 74992530. Its totient is φ = 74992528.

The previous prime is 74992517. The next prime is 74992531. The reversal of 74992529 is 92529947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55100929 + 19891600 = 7423^2 + 4460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74992529 is a prime.

Together with 74992531, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74994529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37496264 + 37496265.

It is an arithmetic number, because the mean of its divisors is an integer number (37496265).

Almost surely, 2^74992529 is an apocalyptic number.

It is an amenable number.

74992529 is a deficient number, since it is larger than the sum of its proper divisors (1).

74992529 is an equidigital number, since it uses as much as digits as its factorization.

74992529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 74992529 is about 8659.8226887160. The cubic root of 74992529 is about 421.7023293294.

The spelling of 74992529 in words is "seventy-four million, nine hundred ninety-two thousand, five hundred twenty-nine".