68609877 has 16 divisors (see below), whose sum is σ = 107375232. Its totient is φ = 38145600.

The previous prime is 68609869. The next prime is 68609899. The reversal of 68609877 is 77890686.

It is a happy number.

It is not a de Polignac number, because 68609877 - 2³ = 68609869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68608877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43374 + ... + 44927.

It is an arithmetic number, because the mean of its divisors is an integer number (6710952).

Almost surely, 2^68609877 is an apocalyptic number.

It is an amenable number.

68609877 is a deficient number, since it is larger than the sum of its proper divisors (38765355).

68609877 is a wasteful number, since it uses less digits than its factorization.

68609877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88348.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 68609877 is about 8283.1079312055. The cubic root of 68609877 is about 409.3821290214.

The spelling of 68609877 in words is "sixty-eight million, six hundred nine thousand, eight hundred seventy-seven".