73673920 has 112 divisors (see below), whose sum is σ = 192572640. Its totient is φ = 26722304.

The previous prime is 73673917. The next prime is 73673923. The reversal of 73673920 is 2937637.

It is an interprime number because it is at equal distance from previous prime (73673917) and next prime (73673923).

It is a self number, because there is not a number n which added to its sum of digits gives 73673920.

It is not an unprimeable number, because it can be changed into a prime (73673923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157527 + ... + 157993.

Almost surely, 2^73673920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73673920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96286320).

73673920 is an abundant number, since it is smaller than the sum of its proper divisors (118898720).

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

73673920 is a wasteful number, since it uses less digits than its factorization.

73673920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 73673920 is about 8583.3513268420. The cubic root of 73673920 is about 419.2160736218.

The spelling of 73673920 in words is "seventy-three million, six hundred seventy-three thousand, nine hundred twenty".