73371664 has 10 divisors (see below), whose sum is σ = 142157630. Its totient is φ = 36685824.

The previous prime is 73371647. The next prime is 73371667. The reversal of 73371664 is 46617337.

It can be written as a sum of positive squares in only one way, i.e., 43033600 + 30338064 = 6560^2 + 5508^2 .

It is a super-3 number, since 3×73371664³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (73371667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2292849 + ... + 2292880.

It is an arithmetic number, because the mean of its divisors is an integer number (14215763).

Almost surely, 2^73371664 is an apocalyptic number.

It is an amenable number.

73371664 is a deficient number, since it is larger than the sum of its proper divisors (68785966).

73371664 is a wasteful number, since it uses less digits than its factorization.

73371664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585737 (or 4585731 counting only the distinct ones).

The product of its digits is 63504, while the sum is 37.

The square root of 73371664 is about 8565.7261221685. The cubic root of 73371664 is about 418.6419932629.

The spelling of 73371664 in words is "seventy-three million, three hundred seventy-one thousand, six hundred sixty-four".