28514907 has 6 divisors (see below), whose sum is σ = 41188212. Its totient is φ = 19009932.

The previous prime is 28514887. The next prime is 28514923. The reversal of 28514907 is 70941582.

It is not a de Polignac number, because 28514907 - 2¹⁰ = 28513883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28514957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1584153 + ... + 1584170.

It is an arithmetic number, because the mean of its divisors is an integer number (6864702).

Almost surely, 2^28514907 is an apocalyptic number.

28514907 is a deficient number, since it is larger than the sum of its proper divisors (12673305).

28514907 is a wasteful number, since it uses less digits than its factorization.

28514907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168329 (or 3168326 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 28514907 is about 5339.9351119653. The cubic root of 28514907 is about 305.5089844076.

The spelling of 28514907 in words is "twenty-eight million, five hundred fourteen thousand, nine hundred seven".