70858523 has 2 divisors, whose sum is σ = 70858524. Its totient is φ = 70858522.

The previous prime is 70858519. The next prime is 70858547. The reversal of 70858523 is 32585807.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70858523 - 2² = 70858519 is a prime.

It is not a weakly prime, because it can be changed into another prime (70858583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35429261 + 35429262.

It is an arithmetic number, because the mean of its divisors is an integer number (35429262).

Almost surely, 2^70858523 is an apocalyptic number.

70858523 is a deficient number, since it is larger than the sum of its proper divisors (1).

70858523 is an equidigital number, since it uses as much as digits as its factorization.

70858523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 70858523 is about 8417.7504714740. The cubic root of 70858523 is about 413.8065542760.

The spelling of 70858523 in words is "seventy million, eight hundred fifty-eight thousand, five hundred twenty-three".