67425861 has 4 divisors (see below), whose sum is σ = 89901152. Its totient is φ = 44950572.

The previous prime is 67425847. The next prime is 67425863. The reversal of 67425861 is 16852476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 67425861 - 2⁵ = 67425829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67425863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11237641 + ... + 11237646.

It is an arithmetic number, because the mean of its divisors is an integer number (22475288).

Almost surely, 2^67425861 is an apocalyptic number.

It is an amenable number.

67425861 is a deficient number, since it is larger than the sum of its proper divisors (22475291).

67425861 is a wasteful number, since it uses less digits than its factorization.

67425861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22475290.

The product of its digits is 80640, while the sum is 39.

The square root of 67425861 is about 8211.3251671091. The cubic root of 67425861 is about 407.0135180952.

It can be divided in two parts, 67425 and 861, that added together give a palindrome (68286).

The spelling of 67425861 in words is "sixty-seven million, four hundred twenty-five thousand, eight hundred sixty-one".