3919677421 has 8 divisors (see below), whose sum is σ = 4289504544. Its totient is φ = 3552099120.

The previous prime is 3919677413. The next prime is 3919677481. The reversal of 3919677421 is 1247769193.

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

It is not a de Polignac number, because 3919677421 - 2³ = 3919677413 is a prime.

It is a super-2 number, since 2×3919677421² = 30727742169394422482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3919677481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558555 + ... + 565528.

It is an arithmetic number, because the mean of its divisors is an integer number (536188068).

Almost surely, 2^3919677421 is an apocalyptic number.

It is an amenable number.

3919677421 is a deficient number, since it is larger than the sum of its proper divisors (369827123).

3919677421 is a wasteful number, since it uses less digits than its factorization.

3919677421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124411.

The product of its digits is 571536, while the sum is 49.

The square root of 3919677421 is about 62607.3272149514. The cubic root of 3919677421 is about 1576.7037809686.

The spelling of 3919677421 in words is "three billion, nine hundred nineteen million, six hundred seventy-seven thousand, four hundred twenty-one".