28472361 has 8 divisors (see below), whose sum is σ = 38086464. Its totient is φ = 18919920.

The previous prime is 28472359. The next prime is 28472369. The reversal of 28472361 is 16327482.

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

It is not a de Polignac number, because 28472361 - 2¹ = 28472359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28472369) 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, 14326 + ... + 16191.

It is an arithmetic number, because the mean of its divisors is an integer number (4760808).

Almost surely, 2^28472361 is an apocalyptic number.

It is an amenable number.

28472361 is a deficient number, since it is larger than the sum of its proper divisors (9614103).

28472361 is a wasteful number, since it uses less digits than its factorization.

28472361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30831.

The product of its digits is 16128, while the sum is 33.

The square root of 28472361 is about 5335.9498685801. The cubic root of 28472361 is about 305.3569626912.

The spelling of 28472361 in words is "twenty-eight million, four hundred seventy-two thousand, three hundred sixty-one".