68884901 has 4 divisors (see below), whose sum is σ = 72936972. Its totient is φ = 64832832.

The previous prime is 68884897. The next prime is 68884903. The reversal of 68884901 is 10948886.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50779876 + 18105025 = 7126^2 + 4255^2 .

It is not a de Polignac number, because 68884901 - 2² = 68884897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68884903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2026010 + ... + 2026043.

It is an arithmetic number, because the mean of its divisors is an integer number (18234243).

Almost surely, 2^68884901 is an apocalyptic number.

It is an amenable number.

68884901 is a deficient number, since it is larger than the sum of its proper divisors (4052071).

68884901 is a wasteful number, since it uses less digits than its factorization.

68884901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052070.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 68884901 is about 8299.6928256412. The cubic root of 68884901 is about 409.9284051073.

The spelling of 68884901 in words is "sixty-eight million, eight hundred eighty-four thousand, nine hundred one".