69888001 has 4 divisors (see below), whose sum is σ = 69911892. Its totient is φ = 69864112.

The previous prime is 69887963. The next prime is 69888011. The reversal of 69888001 is 10088896.

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 61214976 + 8673025 = 7824^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 69888001 - 2¹¹ = 69885953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69888011) 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, 6826 + ... + 13651.

It is an arithmetic number, because the mean of its divisors is an integer number (17477973).

Almost surely, 2^69888001 is an apocalyptic number.

69888001 is the 6826-th pentagonal number.

It is an amenable number.

69888001 is a deficient number, since it is larger than the sum of its proper divisors (23891).

69888001 is a wasteful number, since it uses less digits than its factorization.

69888001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23890.

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

The square root of 69888001 is about 8359.9043654817. The cubic root of 69888001 is about 411.9086127308.

The spelling of 69888001 in words is "sixty-nine million, eight hundred eighty-eight thousand, one".