73612845 has 18 divisors (see below), whose sum is σ = 127695438. Its totient is φ = 39229488.

The previous prime is 73612843. The next prime is 73612849. The reversal of 73612845 is 54821637.

It can be written as a sum of positive squares in only one way, i.e., 58890276 + 14722569 = 7674^2 + 3837^2 .

It is not a de Polignac number, because 73612845 - 2¹ = 73612843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73612841) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 56916 + ... + 58194.

It is an arithmetic number, because the mean of its divisors is an integer number (7094191).

Almost surely, 2^73612845 is an apocalyptic number.

It is an amenable number.

73612845 is a deficient number, since it is larger than the sum of its proper divisors (54082593).

73612845 is an equidigital number, since it uses as much as digits as its factorization.

73612845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569 (or 1287 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 73612845 is about 8579.7928296667. The cubic root of 73612845 is about 419.1001995105.

The spelling of 73612845 in words is "seventy-three million, six hundred twelve thousand, eight hundred forty-five".