73873820 has 12 divisors (see below), whose sum is σ = 155135064. Its totient is φ = 29549520.

The previous prime is 73873819. The next prime is 73873847. The reversal of 73873820 is 2837837.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846826 + ... + 1846865.

It is an arithmetic number, because the mean of its divisors is an integer number (12927922).

Almost surely, 2^73873820 is an apocalyptic number.

It is an amenable number.

73873820 is an abundant number, since it is smaller than the sum of its proper divisors (81261244).

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

73873820 is a wasteful number, since it uses less digits than its factorization.

73873820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693700 (or 3693698 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 73873820 is about 8594.9880744536. The cubic root of 73873820 is about 419.5948852567.

The spelling of 73873820 in words is "seventy-three million, eight hundred seventy-three thousand, eight hundred twenty".