69887393 has 4 divisors (see below), whose sum is σ = 70390320. Its totient is φ = 69384468.

The previous prime is 69887383. The next prime is 69887401. The reversal of 69887393 is 39378896.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69887393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (69887383) 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 3 ways as a sum of consecutive naturals, for example, 251255 + ... + 251532.

It is an arithmetic number, because the mean of its divisors is an integer number (17597580).

Almost surely, 2^69887393 is an apocalyptic number.

It is an amenable number.

69887393 is a deficient number, since it is larger than the sum of its proper divisors (502927).

69887393 is a wasteful number, since it uses less digits than its factorization.

69887393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502926.

The product of its digits is 1959552, while the sum is 53.

The square root of 69887393 is about 8359.8680013503. The cubic root of 69887393 is about 411.9074182427.

The spelling of 69887393 in words is "sixty-nine million, eight hundred eighty-seven thousand, three hundred ninety-three".