28292671 has 8 divisors (see below), whose sum is σ = 30981888. Its totient is φ = 25623000.

The previous prime is 28292657. The next prime is 28292681. The reversal of 28292671 is 17629282.

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

It is a cyclic number.

It is not a de Polignac number, because 28292671 - 2¹³ = 28284479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28292671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28292611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1765 + ... + 7726.

It is an arithmetic number, because the mean of its divisors is an integer number (3872736).

Almost surely, 2^28292671 is an apocalyptic number.

28292671 is a deficient number, since it is larger than the sum of its proper divisors (2689217).

28292671 is a wasteful number, since it uses less digits than its factorization.

28292671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773.

The product of its digits is 24192, while the sum is 37.

The square root of 28292671 is about 5319.0855417073. The cubic root of 28292671 is about 304.7132340009.

The spelling of 28292671 in words is "twenty-eight million, two hundred ninety-two thousand, six hundred seventy-one".