1073428723 has 16 divisors (see below), whose sum is σ = 1135411200. Its totient is φ = 1013306400.

The previous prime is 1073428721. The next prime is 1073428753. The reversal of 1073428723 is 3278243701.

It is a cyclic number.

It is not a de Polignac number, because 1073428723 - 2¹ = 1073428721 is a prime.

It is a super-2 number, since 2×1073428723² = 2304498446722821458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1073428721) 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, 507438 + ... + 509548.

It is an arithmetic number, because the mean of its divisors is an integer number (70963200).

Almost surely, 2^1073428723 is an apocalyptic number.

1073428723 is a deficient number, since it is larger than the sum of its proper divisors (61982477).

1073428723 is a wasteful number, since it uses less digits than its factorization.

1073428723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 1073428723 is about 32763.2221095545. Note that the first 3 decimals coincide. The cubic root of 1073428723 is about 1023.9004581966.

The spelling of 1073428723 in words is "one billion, seventy-three million, four hundred twenty-eight thousand, seven hundred twenty-three".