70858434 has 16 divisors (see below), whose sum is σ = 142567488. Its totient is φ = 23477712.

The previous prime is 70858433. The next prime is 70858439. The reversal of 70858434 is 43485807.

It is a junction number, because it is equal to n+sod(n) for n = 70858392 and 70858401.

It is not an unprimeable number, because it can be changed into a prime (70858433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34357 + ... + 36360.

It is an arithmetic number, because the mean of its divisors is an integer number (8910468).

Almost surely, 2^70858434 is an apocalyptic number.

70858434 is an abundant number, since it is smaller than the sum of its proper divisors (71709054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70858434 is a wasteful number, since it uses less digits than its factorization.

70858434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70889.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 70858434 is about 8417.7451850243. The cubic root of 70858434 is about 413.8063810256.

The spelling of 70858434 in words is "seventy million, eight hundred fifty-eight thousand, four hundred thirty-four".