28714680 has 144 divisors (see below), whose sum is σ = 97592040. Its totient is φ = 7320960.

The previous prime is 28714667. The next prime is 28714691. The reversal of 28714680 is 8641782.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 345919 + ... + 346001.

Almost surely, 2^28714680 is an apocalyptic number.

28714680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28714680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48796020).

28714680 is an abundant number, since it is smaller than the sum of its proper divisors (68877360).

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

28714680 is a wasteful number, since it uses less digits than its factorization.

28714680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 28714680 is about 5358.6080282103. The cubic root of 28714680 is about 306.2207813301.

The spelling of 28714680 in words is "twenty-eight million, seven hundred fourteen thousand, six hundred eighty".