69938406 has 24 divisors (see below), whose sum is σ = 152628840. Its totient is φ = 23144256.

The previous prime is 69938353. The next prime is 69938413. The reversal of 69938406 is 60483996.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11475 + ... + 16478.

It is an arithmetic number, because the mean of its divisors is an integer number (6359535).

Almost surely, 2^69938406 is an apocalyptic number.

69938406 is an abundant number, since it is smaller than the sum of its proper divisors (82690434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69938406 is a wasteful number, since it uses less digits than its factorization.

69938406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28100 (or 28097 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 69938406 is about 8362.9185097070. The cubic root of 69938406 is about 412.0076152487.

The spelling of 69938406 in words is "sixty-nine million, nine hundred thirty-eight thousand, four hundred six".