70871743 has 2 divisors, whose sum is σ = 70871744. Its totient is φ = 70871742.

The previous prime is 70871707. The next prime is 70871753. The reversal of 70871743 is 34717807.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70871743 - 2²¹ = 68774591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70871753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35435871 + 35435872.

It is an arithmetic number, because the mean of its divisors is an integer number (35435872).

Almost surely, 2^70871743 is an apocalyptic number.

70871743 is a deficient number, since it is larger than the sum of its proper divisors (1).

70871743 is an equidigital number, since it uses as much as digits as its factorization.

70871743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 70871743 is about 8418.5356802712. The cubic root of 70871743 is about 413.8322871600.

The spelling of 70871743 in words is "seventy million, eight hundred seventy-one thousand, seven hundred forty-three".