73745307 has 12 divisors (see below), whose sum is σ = 106779504. Its totient is φ = 49044240.

The previous prime is 73745299. The next prime is 73745351. The reversal of 73745307 is 70354737.

It is not a de Polignac number, because 73745307 - 2³ = 73745299 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (73745407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5943 + ... + 13520.

It is an arithmetic number, because the mean of its divisors is an integer number (8898292).

Almost surely, 2^73745307 is an apocalyptic number.

73745307 is a deficient number, since it is larger than the sum of its proper divisors (33034197).

73745307 is a wasteful number, since it uses less digits than its factorization.

73745307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19890 (or 19887 counting only the distinct ones).

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

The square root of 73745307 is about 8587.5087772881. The cubic root of 73745307 is about 419.3514309602.

The spelling of 73745307 in words is "seventy-three million, seven hundred forty-five thousand, three hundred seven".