28357077 has 16 divisors (see below), whose sum is σ = 43659392. Its totient is φ = 16035840.

The previous prime is 28357073. The next prime is 28357103. The reversal of 28357077 is 77075382.

It is not a de Polignac number, because 28357077 - 2² = 28357073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28357073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4924 + ... + 8997.

It is an arithmetic number, because the mean of its divisors is an integer number (2728712).

Almost surely, 2^28357077 is an apocalyptic number.

It is an amenable number.

28357077 is a deficient number, since it is larger than the sum of its proper divisors (15302315).

28357077 is a wasteful number, since it uses less digits than its factorization.

28357077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14028.

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 28357077 is about 5325.1363362829. The cubic root of 28357077 is about 304.9442771981.

The spelling of 28357077 in words is "twenty-eight million, three hundred fifty-seven thousand, seventy-seven".