73451985 has 32 divisors (see below), whose sum is σ = 126220032. Its totient is φ = 36341760.

The previous prime is 73451977. The next prime is 73452007. The reversal of 73451985 is 58915437.

It is not a de Polignac number, because 73451985 - 2³ = 73451977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16077 + ... + 20133.

It is an arithmetic number, because the mean of its divisors is an integer number (3944376).

Almost surely, 2^73451985 is an apocalyptic number.

It is an amenable number.

73451985 is a deficient number, since it is larger than the sum of its proper divisors (52768047).

73451985 is a wasteful number, since it uses less digits than its factorization.

73451985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153.

The product of its digits is 151200, while the sum is 42.

The square root of 73451985 is about 8570.4133505917. The cubic root of 73451985 is about 418.7947019925.

The spelling of 73451985 in words is "seventy-three million, four hundred fifty-one thousand, nine hundred eighty-five".