73687998 has 16 divisors (see below), whose sum is σ = 153783936. Its totient is φ = 23494680.

The previous prime is 73687997. The next prime is 73688003. The reversal of 73687998 is 89978637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73687997) 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, 266848 + ... + 267123.

It is an arithmetic number, because the mean of its divisors is an integer number (9611496).

Almost surely, 2^73687998 is an apocalyptic number.

73687998 is an abundant number, since it is smaller than the sum of its proper divisors (80095938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73687998 is a wasteful number, since it uses less digits than its factorization.

73687998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533999.

The product of its digits is 4572288, while the sum is 57.

The square root of 73687998 is about 8584.1713636204. The cubic root of 73687998 is about 419.2427739250.

The spelling of 73687998 in words is "seventy-three million, six hundred eighty-seven thousand, nine hundred ninety-eight".