69696009 has 12 divisors (see below), whose sum is σ = 105970800. Its totient is φ = 44018424.

The previous prime is 69695987. The next prime is 69696059. The reversal of 69696009 is 90069696.

It is not a de Polignac number, because 69696009 - 2¹¹ = 69693961 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (69696059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203619 + ... + 203960.

It is an arithmetic number, because the mean of its divisors is an integer number (8830900).

Almost surely, 2^69696009 is an apocalyptic number.

It is an amenable number.

69696009 is a deficient number, since it is larger than the sum of its proper divisors (36274791).

69696009 is a wasteful number, since it uses less digits than its factorization.

69696009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407604 (or 407601 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 69696009 is about 8348.4135618691. The cubic root of 69696009 is about 411.5310768380.

It can be divided in two parts, 6969600 and 9, that multiplied together give a square (62726400 = 7920²).

The spelling of 69696009 in words is "sixty-nine million, six hundred ninety-six thousand, nine".