3667434821 has 8 divisors (see below), whose sum is σ = 3679269888. Its totient is φ = 3655620000.

The previous prime is 3667434779. The next prime is 3667434833. The reversal of 3667434821 is 1284347663.

3667434821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3667434821 - 2²² = 3663240517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3667434721) 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, 410876 + ... + 419706.

It is an arithmetic number, because the mean of its divisors is an integer number (459908736).

Almost surely, 2^3667434821 is an apocalyptic number.

It is an amenable number.

3667434821 is a deficient number, since it is larger than the sum of its proper divisors (11835067).

3667434821 is an equidigital number, since it uses as much as digits as its factorization.

3667434821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10123.

The product of its digits is 580608, while the sum is 44.

The square root of 3667434821 is about 60559.3495754372. The cubic root of 3667434821 is about 1542.1293449931.

The spelling of 3667434821 in words is "three billion, six hundred sixty-seven million, four hundred thirty-four thousand, eight hundred twenty-one".