28897703 has 8 divisors (see below), whose sum is σ = 30124272. Its totient is φ = 27694656.

The previous prime is 28897699. The next prime is 28897709. The reversal of 28897703 is 30779882.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28897703 - 2² = 28897699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28897709) 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, 3350 + ... + 8307.

It is an arithmetic number, because the mean of its divisors is an integer number (3765534).

Almost surely, 2^28897703 is an apocalyptic number.

28897703 is a deficient number, since it is larger than the sum of its proper divisors (1226569).

28897703 is a wasteful number, since it uses less digits than its factorization.

28897703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11761.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 28897703 is about 5375.6583782826. The cubic root of 28897703 is about 306.8700054770.

The spelling of 28897703 in words is "twenty-eight million, eight hundred ninety-seven thousand, seven hundred three".