3685487654 has 4 divisors (see below), whose sum is σ = 5528231484. Its totient is φ = 1842743826.

The previous prime is 3685487557. The next prime is 3685487671. The reversal of 3685487654 is 4567845863.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3685487654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921371912 + ... + 921371915.

It is an arithmetic number, because the mean of its divisors is an integer number (1382057871).

Almost surely, 2^3685487654 is an apocalyptic number.

3685487654 is a deficient number, since it is larger than the sum of its proper divisors (1842743830).

3685487654 is a wasteful number, since it uses less digits than its factorization.

3685487654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842743829.

The product of its digits is 19353600, while the sum is 56.

The square root of 3685487654 is about 60708.2173515250. The cubic root of 3685487654 is about 1544.6555655634.

The spelling of 3685487654 in words is "three billion, six hundred eighty-five million, four hundred eighty-seven thousand, six hundred fifty-four".