68261085 has 24 divisors (see below), whose sum is σ = 120555864. Its totient is φ = 35717760.

The previous prime is 68261009. The next prime is 68261107. The reversal of 68261085 is 58016286.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 544644 + 67716441 = 738^2 + 8229^2 .

It is not a de Polignac number, because 68261085 - 2⁷ = 68260957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11926 + ... + 16695.

It is an arithmetic number, because the mean of its divisors is an integer number (5023161).

Almost surely, 2^68261085 is an apocalyptic number.

It is an amenable number.

68261085 is a deficient number, since it is larger than the sum of its proper divisors (52294779).

68261085 is a wasteful number, since it uses less digits than its factorization.

68261085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28685 (or 28682 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 68261085 is about 8262.0266884101. The cubic root of 68261085 is about 408.6872248797.

The spelling of 68261085 in words is "sixty-eight million, two hundred sixty-one thousand, eighty-five".