69868642 has 4 divisors (see below), whose sum is σ = 104802966. Its totient is φ = 34934320.

The previous prime is 69868621. The next prime is 69868661. The reversal of 69868642 is 24686896.

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

It can be written as a sum of positive squares in only one way, i.e., 60078001 + 9790641 = 7751^2 + 3129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17467159 + ... + 17467162.

Almost surely, 2^69868642 is an apocalyptic number.

69868642 is a deficient number, since it is larger than the sum of its proper divisors (34934324).

69868642 is a wasteful number, since it uses less digits than its factorization.

69868642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34934323.

The product of its digits is 995328, while the sum is 49.

The square root of 69868642 is about 8358.7464371160. The cubic root of 69868642 is about 411.8705762767.

The spelling of 69868642 in words is "sixty-nine million, eight hundred sixty-eight thousand, six hundred forty-two".