74509087 has 4 divisors (see below), whose sum is σ = 75452320. Its totient is φ = 73565856.

The previous prime is 74509081. The next prime is 74509103. The reversal of 74509087 is 78090547.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74509087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74509081) 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, 471498 + ... + 471655.

It is an arithmetic number, because the mean of its divisors is an integer number (18863080).

Almost surely, 2^74509087 is an apocalyptic number.

74509087 is a deficient number, since it is larger than the sum of its proper divisors (943233).

74509087 is an equidigital number, since it uses as much as digits as its factorization.

74509087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943232.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 74509087 is about 8631.8646305419. The cubic root of 74509087 is about 420.7942020886.

The spelling of 74509087 in words is "seventy-four million, five hundred nine thousand, eighty-seven".