69142917 has 8 divisors (see below), whose sum is σ = 92229760. Its totient is φ = 46075680.

The previous prime is 69142903. The next prime is 69142967. The reversal of 69142917 is 71924196.

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

It is not a de Polignac number, because 69142917 - 2¹⁹ = 68618629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69142967) 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, 8817 + ... + 14697.

It is an arithmetic number, because the mean of its divisors is an integer number (11528720).

Almost surely, 2^69142917 is an apocalyptic number.

It is an amenable number.

69142917 is a deficient number, since it is larger than the sum of its proper divisors (23086843).

69142917 is a wasteful number, since it uses less digits than its factorization.

69142917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9803.

The product of its digits is 27216, while the sum is 39.

The square root of 69142917 is about 8315.2220054548. Note that the first 3 decimals coincide. The cubic root of 69142917 is about 410.4395781152.

The spelling of 69142917 in words is "sixty-nine million, one hundred forty-two thousand, nine hundred seventeen".