73652509 has 8 divisors (see below), whose sum is σ = 87834240. Its totient is φ = 60385776.

The previous prime is 73652471. The next prime is 73652543. The reversal of 73652509 is 90525637.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73652509 - 2¹⁹ = 73128221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73652549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228574 + ... + 228895.

It is an arithmetic number, because the mean of its divisors is an integer number (10979280).

Almost surely, 2^73652509 is an apocalyptic number.

It is an amenable number.

73652509 is a deficient number, since it is larger than the sum of its proper divisors (14181731).

73652509 is a wasteful number, since it uses less digits than its factorization.

73652509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457499.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 73652509 is about 8582.1039961072. The cubic root of 73652509 is about 419.1754590461.

The spelling of 73652509 in words is "seventy-three million, six hundred fifty-two thousand, five hundred nine".