3987219430 has 16 divisors (see below), whose sum is σ = 7194050064. Its totient is φ = 1591097760.

The previous prime is 3987219427. The next prime is 3987219461. The reversal of 3987219430 is 349127893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469332 + ... + 477751.

It is an arithmetic number, because the mean of its divisors is an integer number (449628129).

Almost surely, 2^3987219430 is an apocalyptic number.

3987219430 is a deficient number, since it is larger than the sum of its proper divisors (3206830634).

3987219430 is a wasteful number, since it uses less digits than its factorization.

3987219430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947511.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 3987219430 is about 63144.4330879611. The cubic root of 3987219430 is about 1585.7085906127.

The spelling of 3987219430 in words is "three billion, nine hundred eighty-seven million, two hundred nineteen thousand, four hundred thirty".