67657952 has 24 divisors (see below), whose sum is σ = 133385112. Its totient is φ = 33782400.

The previous prime is 67657951. The next prime is 67657969. The reversal of 67657952 is 25975676.

It is a junction number, because it is equal to n+sod(n) for n = 67657897 and 67657906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67657951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43427 + ... + 44957.

It is an arithmetic number, because the mean of its divisors is an integer number (5557713).

Almost surely, 2^67657952 is an apocalyptic number.

It is an amenable number.

67657952 is a deficient number, since it is larger than the sum of its proper divisors (65727160).

67657952 is a wasteful number, since it uses less digits than its factorization.

67657952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922 (or 2914 counting only the distinct ones).

The product of its digits is 793800, while the sum is 47.

The square root of 67657952 is about 8225.4453982748. The cubic root of 67657952 is about 407.4799859693.

The spelling of 67657952 in words is "sixty-seven million, six hundred fifty-seven thousand, nine hundred fifty-two".