70886071 has 2 divisors, whose sum is σ = 70886072. Its totient is φ = 70886070.

The previous prime is 70886051. The next prime is 70886077. The reversal of 70886071 is 17068807.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70886071 - 2¹⁹ = 70361783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70886071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70886077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35443035 + 35443036.

It is an arithmetic number, because the mean of its divisors is an integer number (35443036).

Almost surely, 2^70886071 is an apocalyptic number.

70886071 is a deficient number, since it is larger than the sum of its proper divisors (1).

70886071 is an equidigital number, since it uses as much as digits as its factorization.

70886071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 70886071 is about 8419.3866166129. The cubic root of 70886071 is about 413.8601731657.

The spelling of 70886071 in words is "seventy million, eight hundred eighty-six thousand, seventy-one".