70661212 has 24 divisors (see below), whose sum is σ = 127727600. Its totient is φ = 34183296.

The previous prime is 70661203. The next prime is 70661219. The reversal of 70661212 is 21216607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70661219) 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, 16864 + ... + 20632.

Almost surely, 2^70661212 is an apocalyptic number.

It is an amenable number.

70661212 is a deficient number, since it is larger than the sum of its proper divisors (57066388).

70661212 is a wasteful number, since it uses less digits than its factorization.

70661212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925 (or 3923 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 70661212 is about 8406.0223649476. The cubic root of 70661212 is about 413.4221051671.

Adding to 70661212 its reverse (21216607), we get a palindrome (91877819).

The spelling of 70661212 in words is "seventy million, six hundred sixty-one thousand, two hundred twelve".