70038666 has 12 divisors (see below), whose sum is σ = 151750482. Its totient is φ = 23346216.

The previous prime is 70038659. The next prime is 70038667. The reversal of 70038666 is 66683007.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56927025 + 13111641 = 7545^2 + 3621^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 70038666.

It is not an unprimeable number, because it can be changed into a prime (70038667) by changing a digit.

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, 1945501 + ... + 1945536.

Almost surely, 2^70038666 is an apocalyptic number.

70038666 is an abundant number, since it is smaller than the sum of its proper divisors (81711816).

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

70038666 is a wasteful number, since it uses less digits than its factorization.

70038666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891045 (or 3891042 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 70038666 is about 8368.9106818032. The cubic root of 70038666 is about 412.2043986883.

The spelling of 70038666 in words is "seventy million, thirty-eight thousand, six hundred sixty-six".