69892489 has 2 divisors, whose sum is σ = 69892490. Its totient is φ = 69892488.

The previous prime is 69892483. The next prime is 69892547. The reversal of 69892489 is 98429896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59166864 + 10725625 = 7692^2 + 3275^2 .

It is a cyclic number.

It is not a de Polignac number, because 69892489 - 2³ = 69892481 is a prime.

It is not a weakly prime, because it can be changed into another prime (69892481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34946244 + 34946245.

It is an arithmetic number, because the mean of its divisors is an integer number (34946245).

Almost surely, 2^69892489 is an apocalyptic number.

It is an amenable number.

69892489 is a deficient number, since it is larger than the sum of its proper divisors (1).

69892489 is an equidigital number, since it uses as much as digits as its factorization.

69892489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 55.

The square root of 69892489 is about 8360.1727852958. The cubic root of 69892489 is about 411.9174297250.

The spelling of 69892489 in words is "sixty-nine million, eight hundred ninety-two thousand, four hundred eighty-nine".