28150687 has 2 divisors, whose sum is σ = 28150688. Its totient is φ = 28150686.

The previous prime is 28150669. The next prime is 28150699. The reversal of 28150687 is 78605182.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28150687 is a prime.

It is a super-2 number, since 2×28150687² = 1584922357143938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28150627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14075343 + 14075344.

It is an arithmetic number, because the mean of its divisors is an integer number (14075344).

Almost surely, 2^28150687 is an apocalyptic number.

28150687 is a deficient number, since it is larger than the sum of its proper divisors (1).

28150687 is an equidigital number, since it uses as much as digits as its factorization.

28150687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 28150687 is about 5305.7220997712. The cubic root of 28150687 is about 304.2026544354.

The spelling of 28150687 in words is "twenty-eight million, one hundred fifty thousand, six hundred eighty-seven".