70681727 has 2 divisors, whose sum is σ = 70681728. Its totient is φ = 70681726.

The previous prime is 70681711. The next prime is 70681763. The reversal of 70681727 is 72718607.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70681727 - 2⁴ = 70681711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70681777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35340863 + 35340864.

It is an arithmetic number, because the mean of its divisors is an integer number (35340864).

Almost surely, 2^70681727 is an apocalyptic number.

70681727 is a deficient number, since it is larger than the sum of its proper divisors (1).

70681727 is an equidigital number, since it uses as much as digits as its factorization.

70681727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 70681727 is about 8407.2425324835. The cubic root of 70681727 is about 413.4621107731.

The spelling of 70681727 in words is "seventy million, six hundred eighty-one thousand, seven hundred twenty-seven".