3671661925 has 24 divisors (see below), whose sum is σ = 4777194240. Its totient is φ = 2794017600.

The previous prime is 3671661911. The next prime is 3671661967. The reversal of 3671661925 is 5291661763.

It is not a de Polignac number, because 3671661925 - 2⁵ = 3671661893 is a prime.

It is a super-2 number, since 2×3671661925² = 26962202582989411250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86436 + ... + 121714.

It is an arithmetic number, because the mean of its divisors is an integer number (199049760).

Almost surely, 2^3671661925 is an apocalyptic number.

It is an amenable number.

3671661925 is a deficient number, since it is larger than the sum of its proper divisors (1105532315).

3671661925 is a wasteful number, since it uses less digits than its factorization.

3671661925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35493 (or 35488 counting only the distinct ones).

The product of its digits is 408240, while the sum is 46.

The square root of 3671661925 is about 60594.2400315410. The cubic root of 3671661925 is about 1542.7216062085.

The spelling of 3671661925 in words is "three billion, six hundred seventy-one million, six hundred sixty-one thousand, nine hundred twenty-five".