3947421514 has 8 divisors (see below), whose sum is σ = 5928294528. Its totient is φ = 1971323340.

The previous prime is 3947421509. The next prime is 3947421521. The reversal of 3947421514 is 4151247493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191642 + ... + 1194949.

It is an arithmetic number, because the mean of its divisors is an integer number (741036816).

Almost surely, 2^3947421514 is an apocalyptic number.

3947421514 is a deficient number, since it is larger than the sum of its proper divisors (1980873014).

3947421514 is a wasteful number, since it uses less digits than its factorization.

3947421514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387420.

The product of its digits is 120960, while the sum is 40.

The square root of 3947421514 is about 62828.5087679152. The cubic root of 3947421514 is about 1580.4150906940.

The spelling of 3947421514 in words is "three billion, nine hundred forty-seven million, four hundred twenty-one thousand, five hundred fourteen".