69890741 has 2 divisors, whose sum is σ = 69890742. Its totient is φ = 69890740.

The previous prime is 69890693. The next prime is 69890749. The reversal of 69890741 is 14709896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52635025 + 17255716 = 7255^2 + 4154^2 .

It is a cyclic number.

It is not a de Polignac number, because 69890741 - 2⁶ = 69890677 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 69890692 and 69890701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69890749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34945370 + 34945371.

It is an arithmetic number, because the mean of its divisors is an integer number (34945371).

Almost surely, 2^69890741 is an apocalyptic number.

It is an amenable number.

69890741 is a deficient number, since it is larger than the sum of its proper divisors (1).

69890741 is an equidigital number, since it uses as much as digits as its factorization.

69890741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 69890741 is about 8360.0682413483. The cubic root of 69890741 is about 411.9139956999.

The spelling of 69890741 in words is "sixty-nine million, eight hundred ninety thousand, seven hundred forty-one".