1772085 has 24 divisors (see below), whose sum is σ = 3299616. Its totient is φ = 809760.

The previous prime is 1772077. The next prime is 1772087. The reversal of 1772085 is 5802771.

It is a happy number.

It is not a de Polignac number, because 1772085 - 2³ = 1772077 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1772087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 471 + ... + 1940.

It is an arithmetic number, because the mean of its divisors is an integer number (137484).

2^1772085 is an apocalyptic number.

1772085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1772085 is a deficient number, since it is larger than the sum of its proper divisors (1527531).

1772085 is a wasteful number, since it uses less digits than its factorization.

1772085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433 (or 2426 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 1772085 is about 1331.1968299241. The cubic root of 1772085 is about 121.0119287923.

The spelling of 1772085 in words is "one million, seven hundred seventy-two thousand, eighty-five".