70769989 has 2 divisors, whose sum is σ = 70769990. Its totient is φ = 70769988.

The previous prime is 70769983. The next prime is 70770001. The reversal of 70769989 is 98996707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35605089 + 35164900 = 5967^2 + 5930^2 .

It is a cyclic number.

It is not a de Polignac number, because 70769989 - 2⁵ = 70769957 is a prime.

It is a super-3 number, since 3×70769989³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70769983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35384994 + 35384995.

It is an arithmetic number, because the mean of its divisors is an integer number (35384995).

Almost surely, 2^70769989 is an apocalyptic number.

It is an amenable number.

70769989 is a deficient number, since it is larger than the sum of its proper divisors (1).

70769989 is an equidigital number, since it uses as much as digits as its factorization.

70769989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1714608, while the sum is 55.

The square root of 70769989 is about 8412.4900594295. The cubic root of 70769989 is about 413.6341392685.

The spelling of 70769989 in words is "seventy million, seven hundred sixty-nine thousand, nine hundred eighty-nine".