3625213887 has 30 divisors (see below), whose sum is σ = 5467032648. Its totient is φ = 2394001008.

The previous prime is 3625213871. The next prime is 3625213903. The reversal of 3625213887 is 7883125263.

3625213887 is a `hidden beast` number, since 3 + 625 + 2 + 13 + 8 + 8 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (3625213871) and next prime (3625213903).

It is not a de Polignac number, because 3625213887 - 2⁴ = 3625213871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3625213187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 960478 + ... + 964244.

Almost surely, 2^3625213887 is an apocalyptic number.

3625213887 is a deficient number, since it is larger than the sum of its proper divisors (1841818761).

3625213887 is an equidigital number, since it uses as much as digits as its factorization.

3625213887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997 (or 3879 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 3625213887 is about 60209.7491026163. The cubic root of 3625213887 is about 1536.1886250592.

The spelling of 3625213887 in words is "three billion, six hundred twenty-five million, two hundred thirteen thousand, eight hundred eighty-seven".