70643299 has 2 divisors, whose sum is σ = 70643300. Its totient is φ = 70643298.

The previous prime is 70643297. The next prime is 70643351. The reversal of 70643299 is 99234607.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70643299 - 2¹ = 70643297 is a prime.

Together with 70643297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70643291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35321649 + 35321650.

It is an arithmetic number, because the mean of its divisors is an integer number (35321650).

Almost surely, 2^70643299 is an apocalyptic number.

70643299 is a deficient number, since it is larger than the sum of its proper divisors (1).

70643299 is an equidigital number, since it uses as much as digits as its factorization.

70643299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 70643299 is about 8404.9568113108. The cubic root of 70643299 is about 413.3871673002.

The spelling of 70643299 in words is "seventy million, six hundred forty-three thousand, two hundred ninety-nine".