73099657 has 2 divisors, whose sum is σ = 73099658. Its totient is φ = 73099656.

The previous prime is 73099639. The next prime is 73099661. The reversal of 73099657 is 75699037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58537801 + 14561856 = 7651^2 + 3816^2 .

It is an emirp because it is prime and its reverse (75699037) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73099657 is a prime.

It is a super-3 number, since 3×73099657³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (73099687) 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, 36549828 + 36549829.

It is an arithmetic number, because the mean of its divisors is an integer number (36549829).

Almost surely, 2^73099657 is an apocalyptic number.

It is an amenable number.

73099657 is a deficient number, since it is larger than the sum of its proper divisors (1).

73099657 is an equidigital number, since it uses as much as digits as its factorization.

73099657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 357210, while the sum is 46.

The square root of 73099657 is about 8549.8337410736. The cubic root of 73099657 is about 418.1240159940.

The spelling of 73099657 in words is "seventy-three million, ninety-nine thousand, six hundred fifty-seven".