73818825 has 24 divisors (see below), whose sum is σ = 123429600. Its totient is φ = 38924160.

The previous prime is 73818821. The next prime is 73818889. The reversal of 73818825 is 52881837.

It is a happy number.

It is not a de Polignac number, because 73818825 - 2² = 73818821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73818821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1146 + ... + 12204.

It is an arithmetic number, because the mean of its divisors is an integer number (5142900).

Almost surely, 2^73818825 is an apocalyptic number.

73818825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

73818825 is a deficient number, since it is larger than the sum of its proper divisors (49610775).

73818825 is a wasteful number, since it uses less digits than its factorization.

73818825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161 (or 11156 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 73818825 is about 8591.7882306305. The cubic root of 73818825 is about 419.4907376292.

The spelling of 73818825 in words is "seventy-three million, eight hundred eighteen thousand, eight hundred twenty-five".