1107421 has 8 divisors (see below), whose sum is σ = 1272384. Its totient is φ = 944160.

The previous prime is 1107419. The next prime is 1107433. The reversal of 1107421 is 1247011.

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

It is not a de Polignac number, because 1107421 - 2¹ = 1107419 is a prime.

It is a Duffinian number.

1107421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1107395 and 1107404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1107401) 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, 1686 + ... + 2248.

It is an arithmetic number, because the mean of its divisors is an integer number (159048).

2^1107421 is an apocalyptic number.

It is an amenable number.

1107421 is a deficient number, since it is larger than the sum of its proper divisors (164963).

1107421 is an equidigital number, since it uses as much as digits as its factorization.

1107421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1107421 is about 1052.3407242904. The cubic root of 1107421 is about 103.4596293657.

The spelling of 1107421 in words is "one million, one hundred seven thousand, four hundred twenty-one".