28862001 has 40 divisors (see below), whose sum is σ = 49832640. Its totient is φ = 16306272.

The previous prime is 28861993. The next prime is 28862003. The reversal of 28862001 is 10026882.

It is not a de Polignac number, because 28862001 - 2³ = 28861993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28862003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 61570 + ... + 62036.

It is an arithmetic number, because the mean of its divisors is an integer number (1245816).

Almost surely, 2^28862001 is an apocalyptic number.

28862001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28862001 is a deficient number, since it is larger than the sum of its proper divisors (20970639).

28862001 is a wasteful number, since it uses less digits than its factorization.

28862001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 28862001 is about 5372.3366424676. The cubic root of 28862001 is about 306.7435780364.

Adding to 28862001 its reverse (10026882), we get a palindrome (38888883).

The spelling of 28862001 in words is "twenty-eight million, eight hundred sixty-two thousand, one".