69916670 has 8 divisors (see below), whose sum is σ = 125850024. Its totient is φ = 27966664.

The previous prime is 69916663. The next prime is 69916673. The reversal of 69916670 is 7661996.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69916673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3495824 + ... + 3495843.

It is an arithmetic number, because the mean of its divisors is an integer number (15731253).

Almost surely, 2^69916670 is an apocalyptic number.

69916670 is a deficient number, since it is larger than the sum of its proper divisors (55933354).

69916670 is a wasteful number, since it uses less digits than its factorization.

69916670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991674.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 69916670 is about 8361.6188623974. The cubic root of 69916670 is about 411.9649285193.

The spelling of 69916670 in words is "sixty-nine million, nine hundred sixteen thousand, six hundred seventy".