87869759 has 2 divisors, whose sum is σ = 87869760. Its totient is φ = 87869758.

The previous prime is 87869723. The next prime is 87869767. The reversal of 87869759 is 95796878.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87869759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87869698 and 87869707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87869059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43934879 + 43934880.

It is an arithmetic number, because the mean of its divisors is an integer number (43934880).

Almost surely, 2^87869759 is an apocalyptic number.

87869759 is a deficient number, since it is larger than the sum of its proper divisors (1).

87869759 is an equidigital number, since it uses as much as digits as its factorization.

87869759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 59.

The square root of 87869759 is about 9373.8870806086. The cubic root of 87869759 is about 444.5764753825.

The spelling of 87869759 in words is "eighty-seven million, eight hundred sixty-nine thousand, seven hundred fifty-nine".