70854820 has 24 divisors (see below), whose sum is σ = 149043384. Its totient is φ = 28294656.

The previous prime is 70854779. The next prime is 70854829. The reversal of 70854820 is 2845807.

It can be written as a sum of positive squares in 4 ways, for example, as 48330304 + 22524516 = 6952^2 + 4746^2 .

It is not an unprimeable number, because it can be changed into a prime (70854829) 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, 10924 + ... + 16156.

It is an arithmetic number, because the mean of its divisors is an integer number (6210141).

Almost surely, 2^70854820 is an apocalyptic number.

It is an amenable number.

70854820 is an abundant number, since it is smaller than the sum of its proper divisors (78188564).

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

70854820 is a wasteful number, since it uses less digits than its factorization.

70854820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919 (or 5917 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 70854820 is about 8417.5305167252. The cubic root of 70854820 is about 413.7993457695.

The spelling of 70854820 in words is "seventy million, eight hundred fifty-four thousand, eight hundred twenty".