73987983 has 6 divisors (see below), whose sum is σ = 106871544. Its totient is φ = 49325316.

The previous prime is 73987973. The next prime is 73988021. The reversal of 73987983 is 38978937.

It is not a de Polignac number, because 73987983 - 2⁴ = 73987967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73987933) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4110435 + ... + 4110452.

It is an arithmetic number, because the mean of its divisors is an integer number (17811924).

Almost surely, 2^73987983 is an apocalyptic number.

73987983 is a deficient number, since it is larger than the sum of its proper divisors (32883561).

73987983 is a wasteful number, since it uses less digits than its factorization.

73987983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8220893 (or 8220890 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 73987983 is about 8601.6267647463. The cubic root of 73987983 is about 419.8109182906.

The spelling of 73987983 in words is "seventy-three million, nine hundred eighty-seven thousand, nine hundred eighty-three".