772173 has 10 divisors (see below), whose sum is σ = 1153614. Its totient is φ = 514728.

The previous prime is 772169. The next prime is 772181. The reversal of 772173 is 371277.

772173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 544644 + 227529 = 738^2 + 477^2 .

It is not a de Polignac number, because 772173 - 2² = 772169 is a prime.

It is a super-2 number, since 2×772173² = 1192502283858, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772073) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4686 + ... + 4847.

2⁷⁷²¹⁷³ is an apocalyptic number.

It is an amenable number.

772173 is a deficient number, since it is larger than the sum of its proper divisors (381441).

772173 is an equidigital number, since it uses as much as digits as its factorization.

772173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9545 (or 9536 counting only the distinct ones).

The product of its digits is 2058, while the sum is 27.

The square root of 772173 is about 878.7337480716. The cubic root of 772173 is about 91.7427042188.

The spelling of 772173 in words is "seven hundred seventy-two thousand, one hundred seventy-three", and thus it is an iban number.