69677940 has 48 divisors (see below), whose sum is σ = 205369920. Its totient is φ = 17602560.

The previous prime is 69677939. The next prime is 69677953. The reversal of 69677940 is 4977696.

It is a self number, because there is not a number n which added to its sum of digits gives 69677940.

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 15 ways as a sum of consecutive naturals, for example, 29421 + ... + 31700.

It is an arithmetic number, because the mean of its divisors is an integer number (4278540).

Almost surely, 2^69677940 is an apocalyptic number.

69677940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69677940 is an abundant number, since it is smaller than the sum of its proper divisors (135691980).

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

69677940 is a wasteful number, since it uses less digits than its factorization.

69677940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61152 (or 61150 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 69677940 is about 8347.3313100655. The cubic root of 69677940 is about 411.4955100109.

The spelling of 69677940 in words is "sixty-nine million, six hundred seventy-seven thousand, nine hundred forty".