28019692 has 12 divisors (see below), whose sum is σ = 49586040. Its totient is φ = 13852256.

The previous prime is 28019683. The next prime is 28019701. The reversal of 28019692 is 29691082.

It is an interprime number because it is at equal distance from previous prime (28019683) and next prime (28019701).

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, 38998 + ... + 39709.

It is an arithmetic number, because the mean of its divisors is an integer number (4132170).

Almost surely, 2^28019692 is an apocalyptic number.

It is an amenable number.

28019692 is a deficient number, since it is larger than the sum of its proper divisors (21566348).

28019692 is a wasteful number, since it uses less digits than its factorization.

28019692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78800 (or 78798 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 28019692 is about 5293.3630141905. The cubic root of 28019692 is about 303.7300668274.

The spelling of 28019692 in words is "twenty-eight million, nineteen thousand, six hundred ninety-two".