70853543 has 2 divisors, whose sum is σ = 70853544. Its totient is φ = 70853542.

The previous prime is 70853537. The next prime is 70853609. The reversal of 70853543 is 34535807.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70853543 - 2¹⁴ = 70837159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70853533) 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, 35426771 + 35426772.

It is an arithmetic number, because the mean of its divisors is an integer number (35426772).

Almost surely, 2^70853543 is an apocalyptic number.

70853543 is a deficient number, since it is larger than the sum of its proper divisors (1).

70853543 is an equidigital number, since it uses as much as digits as its factorization.

70853543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 70853543 is about 8417.4546627826. The cubic root of 70853543 is about 413.7968598180.

It can be divided in two parts, 7085 and 3543, that multiplied together give a triangular number (25102155 = T₇₀₈₅).

The spelling of 70853543 in words is "seventy million, eight hundred fifty-three thousand, five hundred forty-three".