3945498099 has 4 divisors (see below), whose sum is σ = 5260664136. Its totient is φ = 2630332064.

The previous prime is 3945498083. The next prime is 3945498113. The reversal of 3945498099 is 9908945493.

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

It is a cyclic number.

It is not a de Polignac number, because 3945498099 - 2⁴ = 3945498083 is a prime.

It is a super-2 number, since 2×3945498099² = 31133910498425227602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3945498059) 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 3 ways as a sum of consecutive naturals, for example, 657583014 + ... + 657583019.

It is an arithmetic number, because the mean of its divisors is an integer number (1315166034).

Almost surely, 2^3945498099 is an apocalyptic number.

3945498099 is a deficient number, since it is larger than the sum of its proper divisors (1315166037).

3945498099 is a wasteful number, since it uses less digits than its factorization.

3945498099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315166036.

The product of its (nonzero) digits is 12597120, while the sum is 60.

The square root of 3945498099 is about 62813.2000378901. The cubic root of 3945498099 is about 1580.1583587204.

The spelling of 3945498099 in words is "three billion, nine hundred forty-five million, four hundred ninety-eight thousand, ninety-nine".