28154651 has 8 divisors (see below), whose sum is σ = 32423424. Its totient is φ = 23947560.

The previous prime is 28154641. The next prime is 28154657. The reversal of 28154651 is 15645182.

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

It is not a de Polignac number, because 28154651 - 2¹⁴ = 28138267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28154657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14435 + ... + 16268.

It is an arithmetic number, because the mean of its divisors is an integer number (4052928).

Almost surely, 2^28154651 is an apocalyptic number.

28154651 is a deficient number, since it is larger than the sum of its proper divisors (4268773).

28154651 is a wasteful number, since it uses less digits than its factorization.

28154651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30841.

The product of its digits is 9600, while the sum is 32.

The square root of 28154651 is about 5306.0956455759. The cubic root of 28154651 is about 304.2169323904.

The spelling of 28154651 in words is "twenty-eight million, one hundred fifty-four thousand, six hundred fifty-one".