69968533 has 4 divisors (see below), whose sum is σ = 71288748. Its totient is φ = 68648320.

The previous prime is 69968501. The next prime is 69968537. The reversal of 69968533 is 33586996.

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 28068804 + 41899729 = 5298^2 + 6473^2 .

It is a cyclic number.

It is not a de Polignac number, because 69968533 - 2⁵ = 69968501 is a prime.

It is a super-2 number, since 2×69968533² = 9791191220344178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69968537) 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, 660028 + ... + 660133.

It is an arithmetic number, because the mean of its divisors is an integer number (17822187).

Almost surely, 2^69968533 is an apocalyptic number.

It is an amenable number.

69968533 is a deficient number, since it is larger than the sum of its proper divisors (1320215).

69968533 is a wasteful number, since it uses less digits than its factorization.

69968533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320214.

The product of its digits is 1049760, while the sum is 49.

The square root of 69968533 is about 8364.7195410247. The cubic root of 69968533 is about 412.0667662086.

The spelling of 69968533 in words is "sixty-nine million, nine hundred sixty-eight thousand, five hundred thirty-three".