73730828 has 6 divisors (see below), whose sum is σ = 129028956. Its totient is φ = 36865412.

The previous prime is 73730821. The next prime is 73730837. The reversal of 73730828 is 82803737.

It is a junction number, because it is equal to n+sod(n) for n = 73730791 and 73730800.

It is not an unprimeable number, because it can be changed into a prime (73730821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9216350 + ... + 9216357.

It is an arithmetic number, because the mean of its divisors is an integer number (21504826).

Almost surely, 2^73730828 is an apocalyptic number.

It is an amenable number.

73730828 is a deficient number, since it is larger than the sum of its proper divisors (55298128).

73730828 is a wasteful number, since it uses less digits than its factorization.

73730828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18432711 (or 18432709 counting only the distinct ones).

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

The square root of 73730828 is about 8586.6657091097. The cubic root of 73730828 is about 419.3239843017.

The spelling of 73730828 in words is "seventy-three million, seven hundred thirty thousand, eight hundred twenty-eight".