73702945 has 16 divisors (see below), whose sum is σ = 90494208. Its totient is φ = 57608640.

The previous prime is 73702931. The next prime is 73702987. The reversal of 73702945 is 54920737.

It is not a de Polignac number, because 73702945 - 2¹¹ = 73700897 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 50212 + ... + 51658.

It is an arithmetic number, because the mean of its divisors is an integer number (5655888).

Almost surely, 2^73702945 is an apocalyptic number.

It is an amenable number.

73702945 is a deficient number, since it is larger than the sum of its proper divisors (16791263).

73702945 is a wasteful number, since it uses less digits than its factorization.

73702945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 73702945 is about 8585.0419335027. The cubic root of 73702945 is about 419.2711186499.

It can be divided in two parts, 73702 and 945, that added together give a palindrome (74647).

The spelling of 73702945 in words is "seventy-three million, seven hundred two thousand, nine hundred forty-five".