1773914989 has 16 divisors (see below), whose sum is σ = 2212692480. Its totient is φ = 1381610160.

The previous prime is 1773914971. The next prime is 1773915029. The reversal of 1773914989 is 9894193771.

It is not a de Polignac number, because 1773914989 - 2⁵ = 1773914957 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 (1773914959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211722 + ... + 219940.

It is an arithmetic number, because the mean of its divisors is an integer number (138293280).

Almost surely, 2^1773914989 is an apocalyptic number.

It is an amenable number.

1773914989 is a deficient number, since it is larger than the sum of its proper divisors (438777491).

1773914989 is a wasteful number, since it uses less digits than its factorization.

1773914989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11040.

The product of its digits is 3429216, while the sum is 58.

The square root of 1773914989 is about 42117.8701859436. The cubic root of 1773914989 is about 1210.5356981845.

The spelling of 1773914989 in words is "one billion, seven hundred seventy-three million, nine hundred fourteen thousand, nine hundred eighty-nine".