70952989 has 2 divisors, whose sum is σ = 70952990. Its totient is φ = 70952988.

The previous prime is 70952941. The next prime is 70952993. The reversal of 70952989 is 98925907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63840100 + 7112889 = 7990^2 + 2667^2 .

It is a cyclic number.

It is not a de Polignac number, because 70952989 - 2²¹ = 68855837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70952909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35476494 + 35476495.

It is an arithmetic number, because the mean of its divisors is an integer number (35476495).

Almost surely, 2^70952989 is an apocalyptic number.

It is an amenable number.

70952989 is a deficient number, since it is larger than the sum of its proper divisors (1).

70952989 is an equidigital number, since it uses as much as digits as its factorization.

70952989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 70952989 is about 8423.3597216313. The cubic root of 70952989 is about 413.9903632225.

The spelling of 70952989 in words is "seventy million, nine hundred fifty-two thousand, nine hundred eighty-nine".