68889001 has 4 divisors (see below), whose sum is σ = 69048532. Its totient is φ = 68729472.

The previous prime is 68888999. The next prime is 68889019. The reversal of 68889001 is 10098886.

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 3667225 + 65221776 = 1915^2 + 8076^2 .

It is a cyclic number.

It is not a de Polignac number, because 68889001 - 2¹ = 68888999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68889031) 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, 79116 + ... + 79981.

It is an arithmetic number, because the mean of its divisors is an integer number (17262133).

Almost surely, 2^68889001 is an apocalyptic number.

It is an amenable number.

68889001 is a deficient number, since it is larger than the sum of its proper divisors (159531).

68889001 is a wasteful number, since it uses less digits than its factorization.

68889001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159530.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 68889001 is about 8299.9398190589. The cubic root of 68889001 is about 409.9365378673.

The spelling of 68889001 in words is "sixty-eight million, eight hundred eighty-nine thousand, one".