28414237 has 2 divisors, whose sum is σ = 28414238. Its totient is φ = 28414236.

The previous prime is 28414219. The next prime is 28414249. The reversal of 28414237 is 73241482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28366276 + 47961 = 5326^2 + 219^2 .

It is a cyclic number.

It is not a de Polignac number, because 28414237 - 2⁷ = 28414109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28414199 and 28414208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28414207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14207118 + 14207119.

It is an arithmetic number, because the mean of its divisors is an integer number (14207119).

Almost surely, 2^28414237 is an apocalyptic number.

It is an amenable number.

28414237 is a deficient number, since it is larger than the sum of its proper divisors (1).

28414237 is an equidigital number, since it uses as much as digits as its factorization.

28414237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 31.

The square root of 28414237 is about 5330.5006331488. The cubic root of 28414237 is about 305.1490340356.

The spelling of 28414237 in words is "twenty-eight million, four hundred fourteen thousand, two hundred thirty-seven".