70195878 has 12 divisors (see below), whose sum is σ = 152091108. Its totient is φ = 23398620.

The previous prime is 70195877. The next prime is 70195889. The reversal of 70195878 is 87859107.

It is a super-2 number, since 2×70195878² = 9854922576381768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70195877) 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 in 5 ways as a sum of consecutive naturals, for example, 1949868 + ... + 1949903.

It is an arithmetic number, because the mean of its divisors is an integer number (12674259).

Almost surely, 2^70195878 is an apocalyptic number.

70195878 is an abundant number, since it is smaller than the sum of its proper divisors (81895230).

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

70195878 is a wasteful number, since it uses less digits than its factorization.

70195878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3899779 (or 3899776 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The square root of 70195878 is about 8378.2980371911. The cubic root of 70195878 is about 412.5125858419.

The spelling of 70195878 in words is "seventy million, one hundred ninety-five thousand, eight hundred seventy-eight".