73758906 has 48 divisors (see below), whose sum is σ = 172763136. Its totient is φ = 22608288.

The previous prime is 73758857. The next prime is 73758911. The reversal of 73758906 is 60985737.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89211 + ... + 90033.

It is an arithmetic number, because the mean of its divisors is an integer number (3599232).

Almost surely, 2^73758906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73758906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86381568).

73758906 is an abundant number, since it is smaller than the sum of its proper divisors (99004230).

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

73758906 is a wasteful number, since it uses less digits than its factorization.

73758906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227 (or 1224 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 73758906 is about 8588.3005303727. The cubic root of 73758906 is about 419.3772062031.

The spelling of 73758906 in words is "seventy-three million, seven hundred fifty-eight thousand, nine hundred six".