73909552 has 40 divisors (see below), whose sum is σ = 149177952. Its totient is φ = 35443200.

The previous prime is 73909529. The next prime is 73909553. The reversal of 73909552 is 25590937.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73909553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39093 + ... + 40939.

Almost surely, 2^73909552 is an apocalyptic number.

It is an amenable number.

73909552 is an abundant number, since it is smaller than the sum of its proper divisors (75268400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73909552 is a wasteful number, since it uses less digits than its factorization.

73909552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957 (or 1951 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 73909552 is about 8597.0664764209. The cubic root of 73909552 is about 419.6625255826.

The spelling of 73909552 in words is "seventy-three million, nine hundred nine thousand, five hundred fifty-two".