425626687 has 4 divisors (see below), whose sum is σ = 425681680. Its totient is φ = 425571696.

The previous prime is 425626673. The next prime is 425626693. The reversal of 425626687 is 786626524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425626687 - 2²³ = 417238079 is a prime.

It is a super-3 number, since 3×425626687³ (a number of 27 digits) contains 333 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 (425626627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13518 + ... + 32155.

It is an arithmetic number, because the mean of its divisors is an integer number (106420420).

Almost surely, 2^425626687 is an apocalyptic number.

425626687 is a deficient number, since it is larger than the sum of its proper divisors (54993).

425626687 is an equidigital number, since it uses as much as digits as its factorization.

425626687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54992.

The product of its digits is 967680, while the sum is 46.

The square root of 425626687 is about 20630.7219214452. The cubic root of 425626687 is about 752.2166640058.

The spelling of 425626687 in words is "four hundred twenty-five million, six hundred twenty-six thousand, six hundred eighty-seven".