28716742 has 8 divisors (see below), whose sum is σ = 44948016. Its totient is φ = 13734072.

The previous prime is 28716739. The next prime is 28716761. The reversal of 28716742 is 24761782.

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

It is a congruent number.

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, 312093 + ... + 312184.

It is an arithmetic number, because the mean of its divisors is an integer number (5618502).

Almost surely, 2^28716742 is an apocalyptic number.

28716742 is a deficient number, since it is larger than the sum of its proper divisors (16231274).

28716742 is a wasteful number, since it uses less digits than its factorization.

28716742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624302.

The product of its digits is 37632, while the sum is 37.

The square root of 28716742 is about 5358.8004254684. The cubic root of 28716742 is about 306.2281110553.

The spelling of 28716742 in words is "twenty-eight million, seven hundred sixteen thousand, seven hundred forty-two".