73572987 has 4 divisors (see below), whose sum is σ = 98097320. Its totient is φ = 49048656.

The previous prime is 73572953. The next prime is 73573051. The reversal of 73572987 is 78927537.

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

It is not a de Polignac number, because 73572987 - 2¹⁵ = 73540219 is a prime.

It is a super-2 number, since 2×73572987² = 10825968832204338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73572287) 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 in 3 ways as a sum of consecutive naturals, for example, 12262162 + ... + 12262167.

It is an arithmetic number, because the mean of its divisors is an integer number (24524330).

Almost surely, 2^73572987 is an apocalyptic number.

73572987 is a deficient number, since it is larger than the sum of its proper divisors (24524333).

73572987 is a wasteful number, since it uses less digits than its factorization.

73572987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24524332.

The product of its digits is 740880, while the sum is 48.

The square root of 73572987 is about 8577.4697318032. The cubic root of 73572987 is about 419.0245446364.

The spelling of 73572987 in words is "seventy-three million, five hundred seventy-two thousand, nine hundred eighty-seven".