69628799 has 2 divisors, whose sum is σ = 69628800. Its totient is φ = 69628798.

The previous prime is 69628789. The next prime is 69628807. The reversal of 69628799 is 99782696.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69628799 - 2⁸ = 69628543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69628729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34814399 + 34814400.

It is an arithmetic number, because the mean of its divisors is an integer number (34814400).

Almost surely, 2^69628799 is an apocalyptic number.

69628799 is a deficient number, since it is larger than the sum of its proper divisors (1).

69628799 is an equidigital number, since it uses as much as digits as its factorization.

69628799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 56.

The square root of 69628799 is about 8344.3872752887. The cubic root of 69628799 is about 411.3987502785.

The spelling of 69628799 in words is "sixty-nine million, six hundred twenty-eight thousand, seven hundred ninety-nine".