28861053 has 32 divisors (see below), whose sum is σ = 44416512. Its totient is φ = 16512000.

The previous prime is 28861051. The next prime is 28861103. The reversal of 28861053 is 35016882.

It is a happy number.

It is not a de Polignac number, because 28861053 - 2¹ = 28861051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28861051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66748 + ... + 67178.

It is an arithmetic number, because the mean of its divisors is an integer number (1388016).

Almost surely, 2^28861053 is an apocalyptic number.

It is an amenable number.

28861053 is a deficient number, since it is larger than the sum of its proper divisors (15555459).

28861053 is a wasteful number, since it uses less digits than its factorization.

28861053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 28861053 is about 5372.2484119780. The cubic root of 28861053 is about 306.7402195710.

The spelling of 28861053 in words is "twenty-eight million, eight hundred sixty-one thousand, fifty-three".