28841707 has 4 divisors (see below), whose sum is σ = 30538296. Its totient is φ = 27145120.

The previous prime is 28841671. The next prime is 28841711. The reversal of 28841707 is 70714882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28841707 - 2²³ = 20453099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28841767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848269 + ... + 848302.

It is an arithmetic number, because the mean of its divisors is an integer number (7634574).

Almost surely, 2^28841707 is an apocalyptic number.

28841707 is a deficient number, since it is larger than the sum of its proper divisors (1696589).

28841707 is a wasteful number, since it uses less digits than its factorization.

28841707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696588.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 28841707 is about 5370.4475604925. The cubic root of 28841707 is about 306.6716667164.

The spelling of 28841707 in words is "twenty-eight million, eight hundred forty-one thousand, seven hundred seven".