73629979 has 2 divisors, whose sum is σ = 73629980. Its totient is φ = 73629978.

The previous prime is 73629977. The next prime is 73630001. The reversal of 73629979 is 97992637.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73629979 - 2¹ = 73629977 is a prime.

Together with 73629977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73629977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36814989 + 36814990.

It is an arithmetic number, because the mean of its divisors is an integer number (36814990).

Almost surely, 2^73629979 is an apocalyptic number.

73629979 is a deficient number, since it is larger than the sum of its proper divisors (1).

73629979 is an equidigital number, since it uses as much as digits as its factorization.

73629979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1285956, while the sum is 52.

The square root of 73629979 is about 8580.7912805289. The cubic root of 73629979 is about 419.1327133367.

The spelling of 73629979 in words is "seventy-three million, six hundred twenty-nine thousand, nine hundred seventy-nine".