1023457873 has 4 divisors (see below), whose sum is σ = 1026791920. Its totient is φ = 1020123828.

The previous prime is 1023457871. The next prime is 1023457891. The reversal of 1023457873 is 3787543201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1023457873 - 2¹ = 1023457871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023457871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666563 + ... + 1667176.

It is an arithmetic number, because the mean of its divisors is an integer number (256697980).

Almost surely, 2^1023457873 is an apocalyptic number.

It is an amenable number.

1023457873 is a deficient number, since it is larger than the sum of its proper divisors (3334047).

1023457873 is an equidigital number, since it uses as much as digits as its factorization.

1023457873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334046.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 1023457873 is about 31991.5281441822. The cubic root of 1023457873 is about 1007.7589342408.

The spelling of 1023457873 in words is "one billion, twenty-three million, four hundred fifty-seven thousand, eight hundred seventy-three".