68994053 has 2 divisors, whose sum is σ = 68994054. Its totient is φ = 68994052.

The previous prime is 68994047. The next prime is 68994061. The reversal of 68994053 is 35049986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58644964 + 10349089 = 7658^2 + 3217^2 .

It is a cyclic number.

It is not a de Polignac number, because 68994053 - 2¹² = 68989957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68993995 and 68994013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68994083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34497026 + 34497027.

It is an arithmetic number, because the mean of its divisors is an integer number (34497027).

Almost surely, 2^68994053 is an apocalyptic number.

It is an amenable number.

68994053 is a deficient number, since it is larger than the sum of its proper divisors (1).

68994053 is an equidigital number, since it uses as much as digits as its factorization.

68994053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 68994053 is about 8306.2658878704. The cubic root of 68994053 is about 410.1448090507.

The spelling of 68994053 in words is "sixty-eight million, nine hundred ninety-four thousand, fifty-three".