73965779 has 2 divisors, whose sum is σ = 73965780. Its totient is φ = 73965778.

The previous prime is 73965767. The next prime is 73965781. The reversal of 73965779 is 97756937.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73965779 is a prime.

Together with 73965781, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73965779.

It is not a weakly prime, because it can be changed into another prime (73965709) 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, 36982889 + 36982890.

It is an arithmetic number, because the mean of its divisors is an integer number (36982890).

Almost surely, 2^73965779 is an apocalyptic number.

73965779 is a deficient number, since it is larger than the sum of its proper divisors (1).

73965779 is an equidigital number, since it uses as much as digits as its factorization.

73965779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2500470, while the sum is 53.

The square root of 73965779 is about 8600.3359818091. The cubic root of 73965779 is about 419.7689186132.

The spelling of 73965779 in words is "seventy-three million, nine hundred sixty-five thousand, seven hundred seventy-nine".