3658947654 has 64 divisors (see below), whose sum is σ = 7530651648. Its totient is φ = 1184870400.

The previous prime is 3658947631. The next prime is 3658947659. The reversal of 3658947654 is 4567498563.

It is a super-4 number, since 4×3658947654⁴ (a number of 39 digits) contains 4444 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3658947594 and 3658947603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3658947659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15703522 + ... + 15703754.

It is an arithmetic number, because the mean of its divisors is an integer number (117666432).

Almost surely, 2^3658947654 is an apocalyptic number.

3658947654 is an abundant number, since it is smaller than the sum of its proper divisors (3871703994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3658947654 is a wasteful number, since it uses less digits than its factorization.

3658947654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its digits is 21772800, while the sum is 57.

The square root of 3658947654 is about 60489.2358523399. The cubic root of 3658947654 is about 1540.9388290752.

The spelling of 3658947654 in words is "three billion, six hundred fifty-eight million, nine hundred forty-seven thousand, six hundred fifty-four".