28823955 has 16 divisors (see below), whose sum is σ = 47606784. Its totient is φ = 14876640.

The previous prime is 28823953. The next prime is 28823957. The reversal of 28823955 is 55932882.

28823955 = 137² + 138² + ... + 446².

It is an interprime number because it is at equal distance from previous prime (28823953) and next prime (28823957).

It is not a de Polignac number, because 28823955 - 2¹ = 28823953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28823953) 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, 30529 + ... + 31458.

It is an arithmetic number, because the mean of its divisors is an integer number (2975424).

Almost surely, 2^28823955 is an apocalyptic number.

28823955 is a deficient number, since it is larger than the sum of its proper divisors (18782829).

28823955 is a wasteful number, since it uses less digits than its factorization.

28823955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62026.

The product of its digits is 172800, while the sum is 42.

The square root of 28823955 is about 5368.7945574402. The cubic root of 28823955 is about 306.6087352501.

The spelling of 28823955 in words is "twenty-eight million, eight hundred twenty-three thousand, nine hundred fifty-five".