70003660 has 12 divisors (see below), whose sum is σ = 147007728. Its totient is φ = 28001456.

The previous prime is 70003621. The next prime is 70003669. The reversal of 70003660 is 6630007.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70003669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750072 + ... + 1750111.

It is an arithmetic number, because the mean of its divisors is an integer number (12250644).

Almost surely, 2^70003660 is an apocalyptic number.

It is an amenable number.

70003660 is an abundant number, since it is smaller than the sum of its proper divisors (77004068).

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

70003660 is a wasteful number, since it uses less digits than its factorization.

70003660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500192 (or 3500190 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 70003660 is about 8366.8189893173. The cubic root of 70003660 is about 412.1357126672.

Adding to 70003660 its reverse (6630007), we get a palindrome (76633667).

The spelling of 70003660 in words is "seventy million, three thousand, six hundred sixty".