28354137 has 32 divisors (see below), whose sum is σ = 45849600. Its totient is φ = 15225408.

The previous prime is 28354121. The next prime is 28354153. The reversal of 28354137 is 73145382.

It is an interprime number because it is at equal distance from previous prime (28354121) and next prime (28354153).

It is not a de Polignac number, because 28354137 - 2⁴ = 28354121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28354098 and 28354107.

It is not an unprimeable number, because it can be changed into a prime (28354177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71223 + ... + 71619.

It is an arithmetic number, because the mean of its divisors is an integer number (1432800).

Almost surely, 2^28354137 is an apocalyptic number.

It is an amenable number.

28354137 is a deficient number, since it is larger than the sum of its proper divisors (17495463).

28354137 is a wasteful number, since it uses less digits than its factorization.

28354137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605.

The product of its digits is 20160, while the sum is 33.

The square root of 28354137 is about 5324.8602798571. The cubic root of 28354137 is about 304.9337381810.

The spelling of 28354137 in words is "twenty-eight million, three hundred fifty-four thousand, one hundred thirty-seven".