70109387 has 2 divisors, whose sum is σ = 70109388. Its totient is φ = 70109386.

The previous prime is 70109363. The next prime is 70109401. The reversal of 70109387 is 78390107.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70109387 - 2⁸ = 70109131 is a prime.

It is a super-2 number, since 2×70109387² = 9830652291031538, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70109087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35054693 + 35054694.

It is an arithmetic number, because the mean of its divisors is an integer number (35054694).

Almost surely, 2^70109387 is an apocalyptic number.

70109387 is a deficient number, since it is larger than the sum of its proper divisors (1).

70109387 is an equidigital number, since it uses as much as digits as its factorization.

70109387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 70109387 is about 8373.1348370846. The cubic root of 70109387 is about 412.3430920825.

The spelling of 70109387 in words is "seventy million, one hundred nine thousand, three hundred eighty-seven".