3670836521 has 4 divisors (see below), whose sum is σ = 4004548944. Its totient is φ = 3337124100.

The previous prime is 3670836517. The next prime is 3670836523. The reversal of 3670836521 is 1256380763.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3670836521 - 2² = 3670836517 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3670836523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166856195 + ... + 166856216.

It is an arithmetic number, because the mean of its divisors is an integer number (1001137236).

Almost surely, 2^3670836521 is an apocalyptic number.

It is an amenable number.

3670836521 is a deficient number, since it is larger than the sum of its proper divisors (333712423).

3670836521 is a wasteful number, since it uses less digits than its factorization.

3670836521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333712422.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 3670836521 is about 60587.4287373214. The cubic root of 3670836521 is about 1542.6059942557.

The spelling of 3670836521 in words is "three billion, six hundred seventy million, eight hundred thirty-six thousand, five hundred twenty-one".