69478717 has 12 divisors (see below), whose sum is σ = 88170336. Its totient is φ = 54138840.

The previous prime is 69478697. The next prime is 69478727. The reversal of 69478717 is 71787496.

It is not a de Polignac number, because 69478717 - 2⁷ = 69478589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69478727) 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, 63913 + ... + 64990.

It is an arithmetic number, because the mean of its divisors is an integer number (7347528).

Almost surely, 2^69478717 is an apocalyptic number.

It is an amenable number.

69478717 is a deficient number, since it is larger than the sum of its proper divisors (18691619).

69478717 is a wasteful number, since it uses less digits than its factorization.

69478717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128928 (or 128921 counting only the distinct ones).

The product of its digits is 592704, while the sum is 49.

The square root of 69478717 is about 8335.3894330139. The cubic root of 69478717 is about 411.1029533132.

The spelling of 69478717 in words is "sixty-nine million, four hundred seventy-eight thousand, seven hundred seventeen".