621101349 has 36 divisors (see below), whose sum is σ = 988766688. Its totient is φ = 375415920.

The previous prime is 621101347. The next prime is 621101359. The reversal of 621101349 is 943101126.

621101349 is a `hidden beast` number, since 621 + 1 + 0 + 1 + 34 + 9 = 666.

It is not a de Polignac number, because 621101349 - 2¹ = 621101347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621101347) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 699784 + ... + 700670.

Almost surely, 2^621101349 is an apocalyptic number.

It is an amenable number.

621101349 is a deficient number, since it is larger than the sum of its proper divisors (367665339).

621101349 is a wasteful number, since it uses less digits than its factorization.

621101349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 621101349 is about 24921.9050034302. The cubic root of 621101349 is about 853.2065041642.

The spelling of 621101349 in words is "six hundred twenty-one million, one hundred one thousand, three hundred forty-nine".