73905147 has 12 divisors (see below), whose sum is σ = 110195904. Its totient is φ = 47680560.

The previous prime is 73905121. The next prime is 73905149. The reversal of 73905147 is 74150937.

It is a happy number.

It is not a de Polignac number, because 73905147 - 2⁷ = 73905019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73905149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132168 + ... + 132725.

It is an arithmetic number, because the mean of its divisors is an integer number (9182992).

Almost surely, 2^73905147 is an apocalyptic number.

73905147 is a deficient number, since it is larger than the sum of its proper divisors (36290757).

73905147 is a wasteful number, since it uses less digits than its factorization.

73905147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264930 (or 264927 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 73905147 is about 8596.8102805634. The cubic root of 73905147 is about 419.6541881391.

The spelling of 73905147 in words is "seventy-three million, nine hundred five thousand, one hundred forty-seven".