70853885 has 4 divisors (see below), whose sum is σ = 85024668. Its totient is φ = 56683104.

The previous prime is 70853843. The next prime is 70853911. The reversal of 70853885 is 58835807.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7778521 + 63075364 = 2789^2 + 7942^2 .

It is a cyclic number.

It is not a de Polignac number, because 70853885 - 2¹⁰ = 70852861 is a prime.

It is a super-3 number, since 3×70853885³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

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, 7085384 + ... + 7085393.

It is an arithmetic number, because the mean of its divisors is an integer number (21256167).

Almost surely, 2^70853885 is an apocalyptic number.

It is an amenable number.

70853885 is a deficient number, since it is larger than the sum of its proper divisors (14170783).

70853885 is a wasteful number, since it uses less digits than its factorization.

70853885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14170782.

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 70853885 is about 8417.4749776878. The cubic root of 70853885 is about 413.7975255965.

The spelling of 70853885 in words is "seventy million, eight hundred fifty-three thousand, eight hundred eighty-five".