425467187 has 4 divisors (see below), whose sum is σ = 425536320. Its totient is φ = 425398056.

The previous prime is 425467183. The next prime is 425467193. The reversal of 425467187 is 781764524.

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 425467187 - 2² = 425467183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425467183) 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, 24323 + ... + 37980.

It is an arithmetic number, because the mean of its divisors is an integer number (106384080).

Almost surely, 2^425467187 is an apocalyptic number.

425467187 is a deficient number, since it is larger than the sum of its proper divisors (69133).

425467187 is an equidigital number, since it uses as much as digits as its factorization.

425467187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69132.

The product of its digits is 376320, while the sum is 44.

The square root of 425467187 is about 20626.8559649792. The cubic root of 425467187 is about 752.1226899892.

The spelling of 425467187 in words is "four hundred twenty-five million, four hundred sixty-seven thousand, one hundred eighty-seven".