68535499 has 2 divisors, whose sum is σ = 68535500. Its totient is φ = 68535498.

The previous prime is 68535491. The next prime is 68535547. The reversal of 68535499 is 99453586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68535499 - 2³ = 68535491 is a prime.

It is a super-2 number, since 2×68535499² = 9394229246358002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68535491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34267749 + 34267750.

It is an arithmetic number, because the mean of its divisors is an integer number (34267750).

Almost surely, 2^68535499 is an apocalyptic number.

68535499 is a deficient number, since it is larger than the sum of its proper divisors (1).

68535499 is an equidigital number, since it uses as much as digits as its factorization.

68535499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 49.

The square root of 68535499 is about 8278.6169738671. The cubic root of 68535499 is about 409.2341423907.

The spelling of 68535499 in words is "sixty-eight million, five hundred thirty-five thousand, four hundred ninety-nine".