28977360 has 40 divisors (see below), whose sum is σ = 89830560. Its totient is φ = 7727232.

The previous prime is 28977359. The next prime is 28977373. The reversal of 28977360 is 6377982.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60130 + ... + 60609.

It is an arithmetic number, because the mean of its divisors is an integer number (2245764).

Almost surely, 2^28977360 is an apocalyptic number.

28977360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28977360 is an abundant number, since it is smaller than the sum of its proper divisors (60853200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28977360 is a wasteful number, since it uses less digits than its factorization.

28977360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120755 (or 120749 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 28977360 is about 5383.0623254798. The cubic root of 28977360 is about 307.1517108885.

The spelling of 28977360 in words is "twenty-eight million, nine hundred seventy-seven thousand, three hundred sixty".