73893987 has 24 divisors (see below), whose sum is σ = 111541248. Its totient is φ = 47084400.

The previous prime is 73893961. The next prime is 73893991. The reversal of 73893987 is 78939837.

It is not a de Polignac number, because 73893987 - 2¹⁶ = 73828451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73893947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21562 + ... + 24752.

It is an arithmetic number, because the mean of its divisors is an integer number (4647552).

Almost surely, 2^73893987 is an apocalyptic number.

73893987 is a deficient number, since it is larger than the sum of its proper divisors (37647261).

73893987 is a wasteful number, since it uses less digits than its factorization.

73893987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311 (or 3308 counting only the distinct ones).

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

The square root of 73893987 is about 8596.1611781074. The cubic root of 73893987 is about 419.6330638706.

The spelling of 73893987 in words is "seventy-three million, eight hundred ninety-three thousand, nine hundred eighty-seven".