28743001 has 16 divisors (see below), whose sum is σ = 33619968. Its totient is φ = 24066000.

The previous prime is 28742977. The next prime is 28743037. The reversal of 28743001 is 10034782.

It is not a de Polignac number, because 28743001 - 2⁷ = 28742873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28743041) 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, 74856 + ... + 75238.

It is an arithmetic number, because the mean of its divisors is an integer number (2101248).

Almost surely, 2^28743001 is an apocalyptic number.

28743001 is the 2681-st decagonal number.

It is an amenable number.

28743001 is a deficient number, since it is larger than the sum of its proper divisors (4876967).

28743001 is a wasteful number, since it uses less digits than its factorization.

28743001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 28743001 is about 5361.2499475402. The cubic root of 28743001 is about 306.3214224089.

Adding to 28743001 its reverse (10034782), we get a palindrome (38777783).

The spelling of 28743001 in words is "twenty-eight million, seven hundred forty-three thousand, one".