3947799500 has 48 divisors (see below), whose sum is σ = 9129189888. Its totient is φ = 1486227200.

The previous prime is 3947799491. The next prime is 3947799503. The reversal of 3947799500 is 59977493.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3947799503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223724 + ... + 240723.

It is an arithmetic number, because the mean of its divisors is an integer number (190191456).

Almost surely, 2^3947799500 is an apocalyptic number.

It is an amenable number.

3947799500 is an abundant number, since it is smaller than the sum of its proper divisors (5181390388).

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

3947799500 is a wasteful number, since it uses less digits than its factorization.

3947799500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464483 (or 464471 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 53.

The square root of 3947799500 is about 62831.5167730336. The cubic root of 3947799500 is about 1580.4655333867.

The spelling of 3947799500 in words is "three billion, nine hundred forty-seven million, seven hundred ninety-nine thousand, five hundred".