28729154 has 8 divisors (see below), whose sum is σ = 43197840. Its totient is φ = 14329876.

The previous prime is 28729123. The next prime is 28729163. The reversal of 28729154 is 45192782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16304 + ... + 17979.

It is an arithmetic number, because the mean of its divisors is an integer number (5399730).

Almost surely, 2^28729154 is an apocalyptic number.

28729154 is a deficient number, since it is larger than the sum of its proper divisors (14468686).

28729154 is a wasteful number, since it uses less digits than its factorization.

28729154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34704.

The product of its digits is 40320, while the sum is 38.

The square root of 28729154 is about 5359.9583953609. The cubic root of 28729154 is about 306.2722241820.

The spelling of 28729154 in words is "twenty-eight million, seven hundred twenty-nine thousand, one hundred fifty-four".