3827429421 has 8 divisors (see below), whose sum is σ = 5117145984. Its totient is φ = 2544666240.

The previous prime is 3827429387. The next prime is 3827429429. The reversal of 3827429421 is 1249247283.

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

It is a de Polignac number, because none of the positive numbers 2^k-3827429421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3827429429) 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, 1737060 + ... + 1739261.

It is an arithmetic number, because the mean of its divisors is an integer number (639643248).

Almost surely, 2^3827429421 is an apocalyptic number.

It is an amenable number.

3827429421 is a deficient number, since it is larger than the sum of its proper divisors (1289716563).

3827429421 is a wasteful number, since it uses less digits than its factorization.

3827429421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476691.

The product of its digits is 193536, while the sum is 42.

The square root of 3827429421 is about 61866.2219712825. The cubic root of 3827429421 is about 1564.2364331709.

The spelling of 3827429421 in words is "three billion, eight hundred twenty-seven million, four hundred twenty-nine thousand, four hundred twenty-one".