70890838 has 8 divisors (see below), whose sum is σ = 107014032. Its totient is φ = 35219496.

The previous prime is 70890829. The next prime is 70890851. The reversal of 70890838 is 83809807.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 70890794 and 70890803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112570 + ... + 113197.

It is an arithmetic number, because the mean of its divisors is an integer number (13376754).

Almost surely, 2^70890838 is an apocalyptic number.

70890838 is a deficient number, since it is larger than the sum of its proper divisors (36123194).

70890838 is a wasteful number, since it uses less digits than its factorization.

70890838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225926.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 70890838 is about 8419.6697084862. The cubic root of 70890838 is about 413.8694501515.

The spelling of 70890838 in words is "seventy million, eight hundred ninety thousand, eight hundred thirty-eight".