3621621802 has 8 divisors (see below), whose sum is σ = 5436828036. Its totient is φ = 1809345792.

The previous prime is 3621621737. The next prime is 3621621821. The reversal of 3621621802 is 2081261263.

It can be written as a sum of positive squares in 2 ways, for example, as 3399939481 + 221682321 = 58309^2 + 14889^2 .

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

It is a super-2 number, since 2×3621621802² = 26232288953443454408, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 729463 + ... + 734410.

Almost surely, 2^3621621802 is an apocalyptic number.

3621621802 is a deficient number, since it is larger than the sum of its proper divisors (1815206234).

3621621802 is a wasteful number, since it uses less digits than its factorization.

3621621802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465112.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 3621621802 is about 60179.9119474264. The cubic root of 3621621802 is about 1535.6810739779.

The spelling of 3621621802 in words is "three billion, six hundred twenty-one million, six hundred twenty-one thousand, eight hundred two".