73934609 has 4 divisors (see below), whose sum is σ = 84496704. Its totient is φ = 63372516.

The previous prime is 73934573. The next prime is 73934617. The reversal of 73934609 is 90643937.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73934609 - 2⁸ = 73934353 is a prime.

It is a super-4 number, since 4×73934609⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73934639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5281037 + ... + 5281050.

It is an arithmetic number, because the mean of its divisors is an integer number (21124176).

Almost surely, 2^73934609 is an apocalyptic number.

It is an amenable number.

73934609 is a deficient number, since it is larger than the sum of its proper divisors (10562095).

73934609 is a wasteful number, since it uses less digits than its factorization.

73934609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10562094.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 73934609 is about 8598.5236523487. The cubic root of 73934609 is about 419.7099452350.

The spelling of 73934609 in words is "seventy-three million, nine hundred thirty-four thousand, six hundred nine".