68962409 has 2 divisors, whose sum is σ = 68962410. Its totient is φ = 68962408.

The previous prime is 68962403. The next prime is 68962427. The reversal of 68962409 is 90426986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57760000 + 11202409 = 7600^2 + 3347^2 .

It is a cyclic number.

It is not a de Polignac number, because 68962409 - 2¹² = 68958313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68962409.

It is not a weakly prime, because it can be changed into another prime (68962403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34481204 + 34481205.

It is an arithmetic number, because the mean of its divisors is an integer number (34481205).

Almost surely, 2^68962409 is an apocalyptic number.

It is an amenable number.

68962409 is a deficient number, since it is larger than the sum of its proper divisors (1).

68962409 is an equidigital number, since it uses as much as digits as its factorization.

68962409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 68962409 is about 8304.3608423526. The cubic root of 68962409 is about 410.0820953989.

The spelling of 68962409 in words is "sixty-eight million, nine hundred sixty-two thousand, four hundred nine".