69990902 has 8 divisors (see below), whose sum is σ = 107823936. Its totient is φ = 34049592.

The previous prime is 69990881. The next prime is 69990913. The reversal of 69990902 is 20909996.

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

It is a congruent number.

It is an unprimeable number.

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, 472838 + ... + 472985.

It is an arithmetic number, because the mean of its divisors is an integer number (13477992).

Almost surely, 2^69990902 is an apocalyptic number.

69990902 is a deficient number, since it is larger than the sum of its proper divisors (37833034).

69990902 is a wasteful number, since it uses less digits than its factorization.

69990902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945862.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 69990902 is about 8366.0565381785. The cubic root of 69990902 is about 412.1106742293.

The spelling of 69990902 in words is "sixty-nine million, nine hundred ninety thousand, nine hundred two".