73703745 has 24 divisors (see below), whose sum is σ = 128270376. Its totient is φ = 39149568.

The previous prime is 73703737. The next prime is 73703759. The reversal of 73703745 is 54730737.

It can be written as a sum of positive squares in 4 ways, for example, as 40144896 + 33558849 = 6336^2 + 5793^2 .

It is not a de Polignac number, because 73703745 - 2³ = 73703737 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8379 + ... + 14751.

It is an arithmetic number, because the mean of its divisors is an integer number (5344599).

Almost surely, 2^73703745 is an apocalyptic number.

It is an amenable number.

73703745 is a deficient number, since it is larger than the sum of its proper divisors (54566631).

73703745 is a wasteful number, since it uses less digits than its factorization.

73703745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641 (or 6638 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 36.

The square root of 73703745 is about 8585.0885260433. The cubic root of 73703745 is about 419.2726356209.

The spelling of 73703745 in words is "seventy-three million, seven hundred three thousand, seven hundred forty-five".