1107621 has 8 divisors (see below), whose sum is σ = 1640960. Its totient is φ = 738396.

The previous prime is 1107619. The next prime is 1107677. The reversal of 1107621 is 1267011.

It is not a de Polignac number, because 1107621 - 2¹ = 1107619 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1107594 and 1107603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1107721) 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, 20485 + ... + 20538.

It is an arithmetic number, because the mean of its divisors is an integer number (205120).

2^1107621 is an apocalyptic number.

It is an amenable number.

1107621 is a deficient number, since it is larger than the sum of its proper divisors (533339).

1107621 is an equidigital number, since it uses as much as digits as its factorization.

1107621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41032 (or 41026 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1107621 is about 1052.4357462572. The cubic root of 1107621 is about 103.4658572532.

It can be divided in two parts, 1107 and 621, that added together give a cube (1728 = 12³).

The spelling of 1107621 in words is "one million, one hundred seven thousand, six hundred twenty-one".