67925109 has 16 divisors (see below), whose sum is σ = 103887488. Its totient is φ = 38670912.

The previous prime is 67925083. The next prime is 67925111. The reversal of 67925109 is 90152976.

67925109 = 35² + 36² + ... + 588².

It is not a de Polignac number, because 67925109 - 2¹¹ = 67923061 is a prime.

It is a super-2 number, since 2×67925109² = 9227640865323762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67925159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22 + ... + 11655.

It is an arithmetic number, because the mean of its divisors is an integer number (6492968).

Almost surely, 2^67925109 is an apocalyptic number.

It is an amenable number.

67925109 is a deficient number, since it is larger than the sum of its proper divisors (35962379).

67925109 is a wasteful number, since it uses less digits than its factorization.

67925109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11964.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 67925109 is about 8241.6690663967. The cubic root of 67925109 is about 408.0156123880.

The spelling of 67925109 in words is "sixty-seven million, nine hundred twenty-five thousand, one hundred nine".