73042969 has 2 divisors, whose sum is σ = 73042970. Its totient is φ = 73042968.

The previous prime is 73042951. The next prime is 73042979. The reversal of 73042969 is 96924037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71571600 + 1471369 = 8460^2 + 1213^2 .

It is a cyclic number.

It is not a de Polignac number, because 73042969 - 2²³ = 64654361 is a prime.

It is a super-2 number, since 2×73042969² = 10670550640669922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73042979) 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, 36521484 + 36521485.

It is an arithmetic number, because the mean of its divisors is an integer number (36521485).

Almost surely, 2^73042969 is an apocalyptic number.

It is an amenable number.

73042969 is a deficient number, since it is larger than the sum of its proper divisors (1).

73042969 is an equidigital number, since it uses as much as digits as its factorization.

73042969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 73042969 is about 8546.5179459239. The cubic root of 73042969 is about 418.0159044794.

The spelling of 73042969 in words is "seventy-three million, forty-two thousand, nine hundred sixty-nine".