68575477 has 2 divisors, whose sum is σ = 68575478. Its totient is φ = 68575476.

The previous prime is 68575469. The next prime is 68575547. The reversal of 68575477 is 77457586.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48986001 + 19589476 = 6999^2 + 4426^2 .

It is a cyclic number.

It is not a de Polignac number, because 68575477 - 2³ = 68575469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68575477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68575447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34287738 + 34287739.

It is an arithmetic number, because the mean of its divisors is an integer number (34287739).

Almost surely, 2^68575477 is an apocalyptic number.

It is an amenable number.

68575477 is a deficient number, since it is larger than the sum of its proper divisors (1).

68575477 is an equidigital number, since it uses as much as digits as its factorization.

68575477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1646400, while the sum is 49.

The square root of 68575477 is about 8281.0311555989. The cubic root of 68575477 is about 409.3136981572.

The spelling of 68575477 in words is "sixty-eight million, five hundred seventy-five thousand, four hundred seventy-seven".