73900000 has 72 divisors (see below), whose sum is σ = 182097720. Its totient is φ = 29520000.

The previous prime is 73899979. The next prime is 73900009. The reversal of 73900000 is 937.

It is a happy number.

It is a super-2 number, since 2×73900000² = 10922420000000000, which contains 22 as substring.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73900009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99631 + ... + 100369.

It is an arithmetic number, because the mean of its divisors is an integer number (2529135).

Almost surely, 2^73900000 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 73900000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91048860).

73900000 is an abundant number, since it is smaller than the sum of its proper divisors (108197720).

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

73900000 is an frugal number, since it uses more digits than its factorization.

73900000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 73900000 is about 8596.5109201350. The cubic root of 73900000 is about 419.6444458756.

Adding to 73900000 its reverse (937), we get a palindrome (73900937).

The spelling of 73900000 in words is "seventy-three million, nine hundred thousand".