73820028 has 12 divisors (see below), whose sum is σ = 172246760. Its totient is φ = 24606672.

The previous prime is 73820027. The next prime is 73820029. The reversal of 73820028 is 82002837.

It is an interprime number because it is at equal distance from previous prime (73820027) and next prime (73820029).

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 73819977 and 73820004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73820027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3075823 + ... + 3075846.

Almost surely, 2^73820028 is an apocalyptic number.

It is an amenable number.

73820028 is an abundant number, since it is smaller than the sum of its proper divisors (98426732).

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

73820028 is a wasteful number, since it uses less digits than its factorization.

73820028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6151676 (or 6151674 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 73820028 is about 8591.8582390540. The cubic root of 73820028 is about 419.4930163823.

The spelling of 73820028 in words is "seventy-three million, eight hundred twenty thousand, twenty-eight".