28892719 has 2 divisors, whose sum is σ = 28892720. Its totient is φ = 28892718.

The previous prime is 28892681. The next prime is 28892723. The reversal of 28892719 is 91729882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28892719 - 2¹⁵ = 28859951 is a prime.

It is a super-2 number, since 2×28892719² = 1669578422425922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28892789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14446359 + 14446360.

It is an arithmetic number, because the mean of its divisors is an integer number (14446360).

Almost surely, 2^28892719 is an apocalyptic number.

28892719 is a deficient number, since it is larger than the sum of its proper divisors (1).

28892719 is an equidigital number, since it uses as much as digits as its factorization.

28892719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 46.

The square root of 28892719 is about 5375.1947871682. The cubic root of 28892719 is about 306.8523624595.

The spelling of 28892719 in words is "twenty-eight million, eight hundred ninety-two thousand, seven hundred nineteen".