69994657 has 2 divisors, whose sum is σ = 69994658. Its totient is φ = 69994656.

The previous prime is 69994643. The next prime is 69994679. The reversal of 69994657 is 75649996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51710481 + 18284176 = 7191^2 + 4276^2 .

It is a cyclic number.

It is not a de Polignac number, because 69994657 - 2¹⁵ = 69961889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69994598 and 69994607.

It is not a weakly prime, because it can be changed into another prime (69994637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34997328 + 34997329.

It is an arithmetic number, because the mean of its divisors is an integer number (34997329).

Almost surely, 2^69994657 is an apocalyptic number.

It is an amenable number.

69994657 is a deficient number, since it is larger than the sum of its proper divisors (1).

69994657 is an equidigital number, since it uses as much as digits as its factorization.

69994657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 55.

The square root of 69994657 is about 8366.2809539245. The cubic root of 69994657 is about 412.1180439867.

The spelling of 69994657 in words is "sixty-nine million, nine hundred ninety-four thousand, six hundred fifty-seven".