70669663 has 8 divisors (see below), whose sum is σ = 74917440. Its totient is φ = 66432000.

The previous prime is 70669601. The next prime is 70669679. The reversal of 70669663 is 36696607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70669663 - 2²⁵ = 37115231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70669693) 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, 15663 + ... + 19663.

It is an arithmetic number, because the mean of its divisors is an integer number (9364680).

Almost surely, 2^70669663 is an apocalyptic number.

70669663 is a deficient number, since it is larger than the sum of its proper divisors (4247777).

70669663 is a wasteful number, since it uses less digits than its factorization.

70669663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057.

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 70669663 is about 8406.5250252408. The cubic root of 70669663 is about 413.4385861134.

The spelling of 70669663 in words is "seventy million, six hundred sixty-nine thousand, six hundred sixty-three".