69627961 has 8 divisors (see below), whose sum is σ = 75123720. Its totient is φ = 64152192.

The previous prime is 69627931. The next prime is 69627967. The reversal of 69627961 is 16972696.

It can be written as a sum of positive squares in 4 ways, for example, as 9859600 + 59768361 = 3140^2 + 7731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 69627961 - 2²⁵ = 36073529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69627967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2691 + ... + 12103.

It is an arithmetic number, because the mean of its divisors is an integer number (9390465).

Almost surely, 2^69627961 is an apocalyptic number.

It is an amenable number.

69627961 is a deficient number, since it is larger than the sum of its proper divisors (5495759).

69627961 is a wasteful number, since it uses less digits than its factorization.

69627961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9995.

The product of its digits is 244944, while the sum is 46.

The square root of 69627961 is about 8344.3370617443. The cubic root of 69627961 is about 411.3970998430.

The spelling of 69627961 in words is "sixty-nine million, six hundred twenty-seven thousand, nine hundred sixty-one".