1772773994 has 16 divisors (see below), whose sum is σ = 2686901568. Its totient is φ = 877152672.

The previous prime is 1772773987. The next prime is 1772773997. The reversal of 1772773994 is 4993772771.

It is not an unprimeable number, because it can be changed into a prime (1772773997) 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, 438209 + ... + 442235.

It is an arithmetic number, because the mean of its divisors is an integer number (167931348).

Almost surely, 2^1772773994 is an apocalyptic number.

1772773994 is a deficient number, since it is larger than the sum of its proper divisors (914127574).

1772773994 is a wasteful number, since it uses less digits than its factorization.

1772773994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6269.

The product of its digits is 4667544, while the sum is 56.

The square root of 1772773994 is about 42104.3227471954. The cubic root of 1772773994 is about 1210.2761007350.

The spelling of 1772773994 in words is "one billion, seven hundred seventy-two million, seven hundred seventy-three thousand, nine hundred ninety-four".