73474745 has 8 divisors (see below), whose sum is σ = 90220416. Its totient is φ = 57412656.

The previous prime is 73474733. The next prime is 73474757. The reversal of 73474745 is 54747437.

73474745 = T₁₁₇ + T₁₁₈ + ... + T₇₆₁.

It is an interprime number because it is at equal distance from previous prime (73474733) and next prime (73474757).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73474745 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 7 ways as a sum of consecutive naturals, for example, 170657 + ... + 171086.

It is an arithmetic number, because the mean of its divisors is an integer number (11277552).

Almost surely, 2^73474745 is an apocalyptic number.

It is an amenable number.

73474745 is a deficient number, since it is larger than the sum of its proper divisors (16745671).

73474745 is a wasteful number, since it uses less digits than its factorization.

73474745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341791.

The product of its digits is 329280, while the sum is 41.

The square root of 73474745 is about 8571.7410716843. The cubic root of 73474745 is about 418.8379537534.

The spelling of 73474745 in words is "seventy-three million, four hundred seventy-four thousand, seven hundred forty-five".