28937107 has 2 divisors, whose sum is σ = 28937108. Its totient is φ = 28937106.

The previous prime is 28937093. The next prime is 28937113. The reversal of 28937107 is 70173982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28937107 - 2¹⁹ = 28412819 is a prime.

It is not a weakly prime, because it can be changed into another prime (28937177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14468553 + 14468554.

It is an arithmetic number, because the mean of its divisors is an integer number (14468554).

Almost surely, 2^28937107 is an apocalyptic number.

28937107 is a deficient number, since it is larger than the sum of its proper divisors (1).

28937107 is an equidigital number, since it uses as much as digits as its factorization.

28937107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 28937107 is about 5379.3221691957. The cubic root of 28937107 is about 307.0094215615.

It can be divided in two parts, 2893 and 7107, that added together give a 4-th power (10000 = 10⁴).

The spelling of 28937107 in words is "twenty-eight million, nine hundred thirty-seven thousand, one hundred seven".