70066000 has 80 divisors (see below), whose sum is σ = 172877328. Its totient is φ = 27456000.

The previous prime is 70065997. The next prime is 70066013. The reversal of 70066000 is 66007.

It can be written as a sum of positive squares in 8 ways, for example, as 7529536 + 62536464 = 2744^2 + 7908^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105670 + ... + 106330.

Almost surely, 2^70066000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70066000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86438664).

70066000 is an abundant number, since it is smaller than the sum of its proper divisors (102811328).

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

70066000 is a wasteful number, since it uses less digits than its factorization.

70066000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 70066000 is about 8370.5435904725. The cubic root of 70066000 is about 412.2580154034.

The spelling of 70066000 in words is "seventy million, sixty-six thousand".