28425654 has 48 divisors (see below), whose sum is σ = 66673152. Its totient is φ = 9059688.

The previous prime is 28425643. The next prime is 28425671. The reversal of 28425654 is 45652482.

It is a happy number.

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9907 + ... + 12449.

It is an arithmetic number, because the mean of its divisors is an integer number (1389024).

Almost surely, 2^28425654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28425654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33336576).

28425654 is an abundant number, since it is smaller than the sum of its proper divisors (38247498).

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

28425654 is a wasteful number, since it uses less digits than its factorization.

28425654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583 (or 2571 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 28425654 is about 5331.5714381409. The cubic root of 28425654 is about 305.1898987614.

The spelling of 28425654 in words is "twenty-eight million, four hundred twenty-five thousand, six hundred fifty-four".