3954599999 has 4 divisors (see below), whose sum is σ = 4519542864. Its totient is φ = 3389657136.

The previous prime is 3954599977. The next prime is 3954600007. The reversal of 3954599999 is 9999954593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9999954593 = 467 ⋅21413179.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3954599999 is a prime.

It is a super-2 number, since 2×3954599999² = 31277722304181600002, which contains 22 as substring.

It is a Duffinian number.

3954599999 is a modest number, since divided by 99999 gives 39545 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3954599939) 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, 282471422 + ... + 282471435.

It is an arithmetic number, because the mean of its divisors is an integer number (1129885716).

Almost surely, 2^3954599999 is an apocalyptic number.

3954599999 is a deficient number, since it is larger than the sum of its proper divisors (564942865).

3954599999 is an equidigital number, since it uses as much as digits as its factorization.

3954599999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564942864.

The product of its digits is 159432300, while the sum is 71.

The square root of 3954599999 is about 62885.6104287777. The cubic root of 3954599999 is about 1581.3725187158.

The spelling of 3954599999 in words is "three billion, nine hundred fifty-four million, five hundred ninety-nine thousand, nine hundred ninety-nine".