69660697 has 4 divisors (see below), whose sum is σ = 72062820. Its totient is φ = 67258576.

The previous prime is 69660683. The next prime is 69660737. The reversal of 69660697 is 79606696.

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 46389721 + 23270976 = 6811^2 + 4824^2 .

It is a cyclic number.

It is not a de Polignac number, because 69660697 - 2¹⁹ = 69136409 is a prime.

It is a super-2 number, since 2×69660697² = 9705225413051618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69660697.

It is not an unprimeable number, because it can be changed into a prime (69660397) 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, 1201018 + ... + 1201075.

It is an arithmetic number, because the mean of its divisors is an integer number (18015705).

Almost surely, 2^69660697 is an apocalyptic number.

It is an amenable number.

69660697 is a deficient number, since it is larger than the sum of its proper divisors (2402123).

69660697 is a wasteful number, since it uses less digits than its factorization.

69660697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402122.

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 69660697 is about 8346.2984010878. The cubic root of 69660697 is about 411.4615633392.

The spelling of 69660697 in words is "sixty-nine million, six hundred sixty thousand, six hundred ninety-seven".