28069486 has 8 divisors (see below), whose sum is σ = 42818040. Its totient is φ = 13796808.

The previous prime is 28069471. The next prime is 28069487. The reversal of 28069486 is 68496082.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28069487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118821 + ... + 119056.

It is an arithmetic number, because the mean of its divisors is an integer number (5352255).

Almost surely, 2^28069486 is an apocalyptic number.

28069486 is a deficient number, since it is larger than the sum of its proper divisors (14748554).

28069486 is a wasteful number, since it uses less digits than its factorization.

28069486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237938.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 28069486 is about 5298.0643635199. The cubic root of 28069486 is about 303.9098806625.

The spelling of 28069486 in words is "twenty-eight million, sixty-nine thousand, four hundred eighty-six".