1783428273 has 48 divisors (see below), whose sum is σ = 2930281536. Its totient is φ = 1074954240.

The previous prime is 1783428271. The next prime is 1783428319. The reversal of 1783428273 is 3728243871.

1783428273 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1783428273 - 2¹ = 1783428271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1783428271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 514161 + ... + 517617.

It is an arithmetic number, because the mean of its divisors is an integer number (61047532).

Almost surely, 2^1783428273 is an apocalyptic number.

It is an amenable number.

1783428273 is a deficient number, since it is larger than the sum of its proper divisors (1146853263).

1783428273 is a wasteful number, since it uses less digits than its factorization.

1783428273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676 (or 3664 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 1783428273 is about 42230.6556070350. The cubic root of 1783428273 is about 1212.6958250761.

The spelling of 1783428273 in words is "one billion, seven hundred eighty-three million, four hundred twenty-eight thousand, two hundred seventy-three".