75089887 has 2 divisors, whose sum is σ = 75089888. Its totient is φ = 75089886.

The previous prime is 75089873. The next prime is 75089897. The reversal of 75089887 is 78898057.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75089887 - 2²³ = 66701279 is a prime.

It is a super-2 number, since 2×75089887² = 11276982259345538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75089827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37544943 + 37544944.

It is an arithmetic number, because the mean of its divisors is an integer number (37544944).

Almost surely, 2^75089887 is an apocalyptic number.

75089887 is a deficient number, since it is larger than the sum of its proper divisors (1).

75089887 is an equidigital number, since it uses as much as digits as its factorization.

75089887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 52.

The square root of 75089887 is about 8665.4421122064. The cubic root of 75089887 is about 421.8847401281.

The spelling of 75089887 in words is "seventy-five million, eighty-nine thousand, eight hundred eighty-seven".