73971049 has 2 divisors, whose sum is σ = 73971050. Its totient is φ = 73971048.

The previous prime is 73971041. The next prime is 73971077. The reversal of 73971049 is 94017937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42667024 + 31304025 = 6532^2 + 5595^2 .

It is a cyclic number.

It is not a de Polignac number, because 73971049 - 2³ = 73971041 is a prime.

It is not a weakly prime, because it can be changed into another prime (73971041) 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, 36985524 + 36985525.

It is an arithmetic number, because the mean of its divisors is an integer number (36985525).

Almost surely, 2^73971049 is an apocalyptic number.

It is an amenable number.

73971049 is a deficient number, since it is larger than the sum of its proper divisors (1).

73971049 is an equidigital number, since it uses as much as digits as its factorization.

73971049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 73971049 is about 8600.6423597310. The cubic root of 73971049 is about 419.7788877714.

The spelling of 73971049 in words is "seventy-three million, nine hundred seventy-one thousand, forty-nine".