3621563436 has 24 divisors (see below), whose sum is σ = 8545264560. Its totient is φ = 1193623552.

The previous prime is 3621563383. The next prime is 3621563443. The reversal of 3621563436 is 6343651263.

It is a super-3 number, since 3×3621563436³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3621563394 and 3621563403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1694421 + ... + 1696556.

It is an arithmetic number, because the mean of its divisors is an integer number (356052690).

Almost surely, 2^3621563436 is an apocalyptic number.

It is an amenable number.

3621563436 is an abundant number, since it is smaller than the sum of its proper divisors (4923701124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3621563436 is a wasteful number, since it uses less digits than its factorization.

3621563436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391073 (or 3391071 counting only the distinct ones).

The product of its digits is 233280, while the sum is 39.

The square root of 3621563436 is about 60179.4270162154. The cubic root of 3621563436 is about 1535.6728242629.

The spelling of 3621563436 in words is "three billion, six hundred twenty-one million, five hundred sixty-three thousand, four hundred thirty-six".