3685087642 has 8 divisors (see below), whose sum is σ = 5530126932. Its totient is φ = 1841712000.

The previous prime is 3685087621. The next prime is 3685087643. The reversal of 3685087642 is 2467805863.

It can be written as a sum of positive squares in 2 ways, for example, as 3623919601 + 61168041 = 60199^2 + 7821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3685087642² = 27159741858442240328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3685087643) 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, 410359 + ... + 419242.

Almost surely, 2^3685087642 is an apocalyptic number.

3685087642 is a deficient number, since it is larger than the sum of its proper divisors (1845039290).

3685087642 is a wasteful number, since it uses less digits than its factorization.

3685087642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831824.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 3685087642 is about 60704.9227163663. The cubic root of 3685087642 is about 1544.5996794161.

The spelling of 3685087642 in words is "three billion, six hundred eighty-five million, eighty-seven thousand, six hundred forty-two".