1772948365 has 4 divisors (see below), whose sum is σ = 2127538044. Its totient is φ = 1418358688.

The previous prime is 1772948339. The next prime is 1772948369. The reversal of 1772948365 is 5638492771.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5638492771 = 73 ⋅77239627.

It can be written as a sum of positive squares in 2 ways, for example, as 1205270089 + 567678276 = 34717^2 + 23826^2 .

It is a cyclic number.

It is not a de Polignac number, because 1772948365 - 2¹⁵ = 1772915597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1772948369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177294832 + ... + 177294841.

It is an arithmetic number, because the mean of its divisors is an integer number (531884511).

Almost surely, 2^1772948365 is an apocalyptic number.

It is an amenable number.

1772948365 is a deficient number, since it is larger than the sum of its proper divisors (354589679).

1772948365 is an equidigital number, since it uses as much as digits as its factorization.

1772948365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354589678.

The product of its digits is 2540160, while the sum is 52.

The square root of 1772948365 is about 42106.3933981527. The cubic root of 1772948365 is about 1210.3157805693.

The spelling of 1772948365 in words is "one billion, seven hundred seventy-two million, nine hundred forty-eight thousand, three hundred sixty-five".