70505850 has 24 divisors (see below), whose sum is σ = 174854880. Its totient is φ = 18801520.

The previous prime is 70505849. The next prime is 70505857. The reversal of 70505850 is 5850507.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70505857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234870 + ... + 235169.

It is an arithmetic number, because the mean of its divisors is an integer number (7285620).

Almost surely, 2^70505850 is an apocalyptic number.

70505850 is an abundant number, since it is smaller than the sum of its proper divisors (104349030).

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

70505850 is a wasteful number, since it uses less digits than its factorization.

70505850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470054 (or 470049 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 70505850 is about 8396.7761670775. The cubic root of 70505850 is about 413.1188873438.

The spelling of 70505850 in words is "seventy million, five hundred five thousand, eight hundred fifty".