70066872 has 24 divisors (see below), whose sum is σ = 189764640. Its totient is φ = 23355600.

The previous prime is 70066859. The next prime is 70066891. The reversal of 70066872 is 27866007.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 486504 + ... + 486647.

It is an arithmetic number, because the mean of its divisors is an integer number (7906860).

Almost surely, 2^70066872 is an apocalyptic number.

70066872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

70066872 is an abundant number, since it is smaller than the sum of its proper divisors (119697768).

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

70066872 is a wasteful number, since it uses less digits than its factorization.

70066872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973163 (or 973156 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 70066872 is about 8370.5956777281. The cubic root of 70066872 is about 412.2597256361.

The spelling of 70066872 in words is "seventy million, sixty-six thousand, eight hundred seventy-two".