1013421 has 16 divisors (see below), whose sum is σ = 1479168. Its totient is φ = 614400.

The previous prime is 1013401. The next prime is 1013429. The reversal of 1013421 is 1243101.

It is a happy number.

It is not a de Polignac number, because 1013421 - 2¹⁰ = 1012397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1013397 and 1013406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261 + ... + 1901.

It is an arithmetic number, because the mean of its divisors is an integer number (92448).

2^1013421 is an apocalyptic number.

It is an amenable number.

1013421 is a deficient number, since it is larger than the sum of its proper divisors (465747).

1013421 is a wasteful number, since it uses less digits than its factorization.

1013421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1013421 is about 1006.6881344289. The cubic root of 1013421 is about 100.4453800875.

Adding to 1013421 its reverse (1243101), we get a palindrome (2256522).

It can be divided in two parts, 10 and 13421, that added together give a palindrome (13431).

The spelling of 1013421 in words is "one million, thirteen thousand, four hundred twenty-one".