772166 has 4 divisors (see below), whose sum is σ = 1158252. Its totient is φ = 386082.

The previous prime is 772159. The next prime is 772169. The reversal of 772166 is 661277.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661277 = 199 ⋅3323.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 772166.

It is not an unprimeable number, because it can be changed into a prime (772169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193040 + ... + 193043.

It is an arithmetic number, because the mean of its divisors is an integer number (289563).

2⁷⁷²¹⁶⁶ is an apocalyptic number.

772166 is a deficient number, since it is larger than the sum of its proper divisors (386086).

772166 is a wasteful number, since it uses less digits than its factorization.

772166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386085.

The product of its digits is 3528, while the sum is 29.

The square root of 772166 is about 878.7297650586. The cubic root of 772166 is about 91.7424269921.

Subtracting from 772166 its reverse (661277), we obtain a square (110889 = 333²).

The spelling of 772166 in words is "seven hundred seventy-two thousand, one hundred sixty-six".