69631445 has 8 divisors (see below), whose sum is σ = 89985336. Its totient is φ = 51420096.

The previous prime is 69631417. The next prime is 69631451. The reversal of 69631445 is 54413696.

It can be written as a sum of positive squares in 4 ways, for example, as 2686321 + 66945124 = 1639^2 + 8182^2 .

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

It is not a de Polignac number, because 69631445 - 2¹⁴ = 69615061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69631399 and 69631408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535562 + ... + 535691.

It is an arithmetic number, because the mean of its divisors is an integer number (11248167).

Almost surely, 2^69631445 is an apocalyptic number.

69631445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

69631445 is a deficient number, since it is larger than the sum of its proper divisors (20353891).

69631445 is a wasteful number, since it uses less digits than its factorization.

69631445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071271.

The product of its digits is 77760, while the sum is 38.

The square root of 69631445 is about 8344.5458234706. The cubic root of 69631445 is about 411.4039614714.

The spelling of 69631445 in words is "sixty-nine million, six hundred thirty-one thousand, four hundred forty-five".