28700716 has 36 divisors (see below), whose sum is σ = 58131640. Its totient is φ = 12355200.

The previous prime is 28700701. The next prime is 28700731. The reversal of 28700716 is 61700782.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28700701) and next prime (28700731).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7636 + ... + 10756.

Almost surely, 2^28700716 is an apocalyptic number.

It is an amenable number.

28700716 is an abundant number, since it is smaller than the sum of its proper divisors (29430924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28700716 is a wasteful number, since it uses less digits than its factorization.

28700716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166 (or 3153 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 28700716 is about 5357.3049194534. The cubic root of 28700716 is about 306.1711347112.

The spelling of 28700716 in words is "twenty-eight million, seven hundred thousand, seven hundred sixteen".