68924489 has 2 divisors, whose sum is σ = 68924490. Its totient is φ = 68924488.

The previous prime is 68924473. The next prime is 68924497. The reversal of 68924489 is 98442986.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36240400 + 32684089 = 6020^2 + 5717^2 .

It is a cyclic number.

It is not a de Polignac number, because 68924489 - 2⁴ = 68924473 is a prime.

It is a super-2 number, since 2×68924489² = 9501170367822242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68924459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34462244 + 34462245.

It is an arithmetic number, because the mean of its divisors is an integer number (34462245).

Almost surely, 2^68924489 is an apocalyptic number.

It is an amenable number.

68924489 is a deficient number, since it is larger than the sum of its proper divisors (1).

68924489 is an equidigital number, since it uses as much as digits as its factorization.

68924489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 50.

The square root of 68924489 is about 8302.0773906294. The cubic root of 68924489 is about 410.0069183842.

The spelling of 68924489 in words is "sixty-eight million, nine hundred twenty-four thousand, four hundred eighty-nine".