774172 has 24 divisors (see below), whose sum is σ = 1586816. Its totient is φ = 323568.

The previous prime is 774161. The next prime is 774173. The reversal of 774172 is 271477.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 774172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774173) 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, 883 + ... + 1525.

2⁷⁷⁴¹⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793408).

774172 is an abundant number, since it is smaller than the sum of its proper divisors (812644).

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

774172 is a wasteful number, since it uses less digits than its factorization.

774172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 695 counting only the distinct ones).

The product of its digits is 2744, while the sum is 28.

The square root of 774172 is about 879.8704450088. The cubic root of 774172 is about 91.8218037801.

It can be divided in two parts, 774 and 172, that added together give a triangular number (946 = T₄₃).

The spelling of 774172 in words is "seven hundred seventy-four thousand, one hundred seventy-two", and thus it is an iban number.