70143679 has 2 divisors, whose sum is σ = 70143680. Its totient is φ = 70143678.

The previous prime is 70143673. The next prime is 70143701. The reversal of 70143679 is 97634107.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70143679 - 2⁷ = 70143551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70143673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35071839 + 35071840.

It is an arithmetic number, because the mean of its divisors is an integer number (35071840).

Almost surely, 2^70143679 is an apocalyptic number.

70143679 is a deficient number, since it is larger than the sum of its proper divisors (1).

70143679 is an equidigital number, since it uses as much as digits as its factorization.

70143679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 70143679 is about 8375.1823263736. The cubic root of 70143679 is about 412.4103097317.

The spelling of 70143679 in words is "seventy million, one hundred forty-three thousand, six hundred seventy-nine".