69887061 has 12 divisors (see below), whose sum is σ = 102331788. Its totient is φ = 45952704.

The previous prime is 69887053. The next prime is 69887107. The reversal of 69887061 is 16078896.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13727025 + 56160036 = 3705^2 + 7494^2 .

It is not a de Polignac number, because 69887061 - 2³ = 69887053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69886998 and 69887016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69887011) 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 11 ways as a sum of consecutive naturals, for example, 52530 + ... + 53843.

It is an arithmetic number, because the mean of its divisors is an integer number (8527649).

Almost surely, 2^69887061 is an apocalyptic number.

It is an amenable number.

69887061 is a deficient number, since it is larger than the sum of its proper divisors (32444727).

69887061 is a wasteful number, since it uses less digits than its factorization.

69887061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106452 (or 106449 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 69887061 is about 8359.8481445538. The cubic root of 69887061 is about 411.9067659864.

The spelling of 69887061 in words is "sixty-nine million, eight hundred eighty-seven thousand, sixty-one".