67643925 has 12 divisors (see below), whose sum is σ = 111838080. Its totient is φ = 36076720.

The previous prime is 67643899. The next prime is 67643959. The reversal of 67643925 is 52934676.

It is not a de Polignac number, because 67643925 - 2⁵ = 67643893 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 450885 + ... + 451034.

It is an arithmetic number, because the mean of its divisors is an integer number (9319840).

Almost surely, 2^67643925 is an apocalyptic number.

It is an amenable number.

67643925 is a deficient number, since it is larger than the sum of its proper divisors (44194155).

67643925 is a wasteful number, since it uses less digits than its factorization.

67643925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901932 (or 901927 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 67643925 is about 8224.5926950822. The cubic root of 67643925 is about 407.4518241315.

The spelling of 67643925 in words is "sixty-seven million, six hundred forty-three thousand, nine hundred twenty-five".