75772906 has 16 divisors (see below), whose sum is σ = 125154720. Its totient is φ = 34119280.

The previous prime is 75772903. The next prime is 75772937. The reversal of 75772906 is 60927757.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (75772903) 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, 13741 + ... + 18448.

It is an arithmetic number, because the mean of its divisors is an integer number (7822170).

Almost surely, 2^75772906 is an apocalyptic number.

75772906 is a deficient number, since it is larger than the sum of its proper divisors (49381814).

75772906 is a wasteful number, since it uses less digits than its factorization.

75772906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32309.

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 75772906 is about 8704.7634086171. The cubic root of 75772906 is about 423.1600383279.

The spelling of 75772906 in words is "seventy-five million, seven hundred seventy-two thousand, nine hundred six".