73074309 has 16 divisors (see below), whose sum is σ = 121474560. Its totient is φ = 37960560.

The previous prime is 73074307. The next prime is 73074311. The reversal of 73074309 is 90347037.

It is an interprime number because it is at equal distance from previous prime (73074307) and next prime (73074311).

It is not a de Polignac number, because 73074309 - 2¹ = 73074307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 73074309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73074307) 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 in 15 ways as a sum of consecutive naturals, for example, 157939 + ... + 158400.

It is an arithmetic number, because the mean of its divisors is an integer number (7592160).

Almost surely, 2^73074309 is an apocalyptic number.

It is an amenable number.

73074309 is a deficient number, since it is larger than the sum of its proper divisors (48400251).

73074309 is a wasteful number, since it uses less digits than its factorization.

73074309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316360.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 73074309 is about 8548.3512445383. The cubic root of 73074309 is about 418.0756809161.

The spelling of 73074309 in words is "seventy-three million, seventy-four thousand, three hundred nine".