28487274 has 32 divisors (see below), whose sum is σ = 60569856. Its totient is φ = 8901120.

The previous prime is 28487273. The next prime is 28487293. The reversal of 28487274 is 47278482.

28487274 = T₁₉₆ + T₁₉₇ + ... + T₅₆₂.

It is not an unprimeable number, because it can be changed into a prime (28487273) 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, 37054 + ... + 37814.

It is an arithmetic number, because the mean of its divisors is an integer number (1892808).

Almost surely, 2^28487274 is an apocalyptic number.

28487274 is an abundant number, since it is smaller than the sum of its proper divisors (32082582).

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

28487274 is a wasteful number, since it uses less digits than its factorization.

28487274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150.

The product of its digits is 200704, while the sum is 42.

The square root of 28487274 is about 5337.3470938285. The cubic root of 28487274 is about 305.4102657708.

The spelling of 28487274 in words is "twenty-eight million, four hundred eighty-seven thousand, two hundred seventy-four".