69964889 has 2 divisors, whose sum is σ = 69964890. Its totient is φ = 69964888.

The previous prime is 69964847. The next prime is 69964903. The reversal of 69964889 is 98846996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49561600 + 20403289 = 7040^2 + 4517^2 .

It is a cyclic number.

It is not a de Polignac number, because 69964889 - 2⁸ = 69964633 is a prime.

It is not a weakly prime, because it can be changed into another prime (69961889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34982444 + 34982445.

It is an arithmetic number, because the mean of its divisors is an integer number (34982445).

Almost surely, 2^69964889 is an apocalyptic number.

It is an amenable number.

69964889 is a deficient number, since it is larger than the sum of its proper divisors (1).

69964889 is an equidigital number, since it uses as much as digits as its factorization.

69964889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6718464, while the sum is 59.

The square root of 69964889 is about 8364.5017185724. The cubic root of 69964889 is about 412.0596125292.

The spelling of 69964889 in words is "sixty-nine million, nine hundred sixty-four thousand, eight hundred eighty-nine".