73699729 has 2 divisors, whose sum is σ = 73699730. Its totient is φ = 73699728.

The previous prime is 73699723. The next prime is 73699739. The reversal of 73699729 is 92799637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65173329 + 8526400 = 8073^2 + 2920^2 .

It is a cyclic number.

It is not a de Polignac number, because 73699729 - 2⁹ = 73699217 is a prime.

It is not a weakly prime, because it can be changed into another prime (73699723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36849864 + 36849865.

It is an arithmetic number, because the mean of its divisors is an integer number (36849865).

Almost surely, 2^73699729 is an apocalyptic number.

It is an amenable number.

73699729 is a deficient number, since it is larger than the sum of its proper divisors (1).

73699729 is an equidigital number, since it uses as much as digits as its factorization.

73699729 is an evil number, because the sum of its binary digits is even.

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

The square root of 73699729 is about 8584.8546289381. The cubic root of 73699729 is about 419.2650203159.

The spelling of 73699729 in words is "seventy-three million, six hundred ninety-nine thousand, seven hundred twenty-nine".