3625144487 has 4 divisors (see below), whose sum is σ = 3625320816. Its totient is φ = 3624968160.

The previous prime is 3625144477. The next prime is 3625144489. The reversal of 3625144487 is 7844415263.

It is a happy number.

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 3625144487 - 2⁸ = 3625144231 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 (3625144489) 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, 52523 + ... + 100044.

It is an arithmetic number, because the mean of its divisors is an integer number (906330204).

Almost surely, 2^3625144487 is an apocalyptic number.

3625144487 is a deficient number, since it is larger than the sum of its proper divisors (176329).

3625144487 is a wasteful number, since it uses less digits than its factorization.

3625144487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176328.

The product of its digits is 645120, while the sum is 44.

The square root of 3625144487 is about 60209.1727812299. The cubic root of 3625144487 is about 1536.1788222196.

The spelling of 3625144487 in words is "three billion, six hundred twenty-five million, one hundred forty-four thousand, four hundred eighty-seven".