3948699345 has 16 divisors (see below), whose sum is σ = 6318715392. Its totient is φ = 2105707520.

The previous prime is 3948699341. The next prime is 3948699379. The reversal of 3948699345 is 5439968493.

It is not a de Polignac number, because 3948699345 - 2² = 3948699341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3948699341) 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 15 ways as a sum of consecutive naturals, for example, 186784 + ... + 206846.

It is an arithmetic number, because the mean of its divisors is an integer number (394919712).

Almost surely, 2^3948699345 is an apocalyptic number.

It is an amenable number.

3948699345 is a deficient number, since it is larger than the sum of its proper divisors (2370016047).

3948699345 is a wasteful number, since it uses less digits than its factorization.

3948699345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33192.

The product of its digits is 25194240, while the sum is 60.

The square root of 3948699345 is about 62838.6771423460. The cubic root of 3948699345 is about 1580.5856058446.

It can be divided in two parts, 39486 and 99345, that added together give a palindrome (138831).

The spelling of 3948699345 in words is "three billion, nine hundred forty-eight million, six hundred ninety-nine thousand, three hundred forty-five".