70649668 has 12 divisors (see below), whose sum is σ = 125732880. Its totient is φ = 34725992.

The previous prime is 70649653. The next prime is 70649699. The reversal of 70649668 is 86694607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149446 + ... + 149917.

It is an arithmetic number, because the mean of its divisors is an integer number (10477740).

Almost surely, 2^70649668 is an apocalyptic number.

It is an amenable number.

70649668 is a deficient number, since it is larger than the sum of its proper divisors (55083212).

70649668 is a wasteful number, since it uses less digits than its factorization.

70649668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299426 (or 299424 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 70649668 is about 8405.3356863364. The cubic root of 70649668 is about 413.3995901994.

It can be divided in two parts, 70649 and 668, that added together give a palindrome (71317).

The spelling of 70649668 in words is "seventy million, six hundred forty-nine thousand, six hundred sixty-eight".