28623692 has 12 divisors (see below), whose sum is σ = 50178240. Its totient is φ = 14287056.

The previous prime is 28623643. The next prime is 28623697. The reversal of 28623692 is 29632682.

It is not an unprimeable number, because it can be changed into a prime (28623697) 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, 3467 + ... + 8322.

It is an arithmetic number, because the mean of its divisors is an integer number (4181520).

Almost surely, 2^28623692 is an apocalyptic number.

It is an amenable number.

28623692 is a deficient number, since it is larger than the sum of its proper divisors (21554548).

28623692 is a wasteful number, since it uses less digits than its factorization.

28623692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12400 (or 12398 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 28623692 is about 5350.1114007093. Note that the first 3 decimals coincide. The cubic root of 28623692 is about 305.8969992378.

The spelling of 28623692 in words is "twenty-eight million, six hundred twenty-three thousand, six hundred ninety-two".