1170421 has 8 divisors (see below), whose sum is σ = 1374080. Its totient is φ = 975888.

The previous prime is 1170397. The next prime is 1170437. The reversal of 1170421 is 1240711.

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

It is a cyclic number.

It is not a de Polignac number, because 1170421 - 2¹³ = 1162229 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1170395 and 1170404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170451) 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, 2001 + ... + 2518.

It is an arithmetic number, because the mean of its divisors is an integer number (171760).

2^1170421 is an apocalyptic number.

It is an amenable number.

1170421 is a deficient number, since it is larger than the sum of its proper divisors (203659).

1170421 is an equidigital number, since it uses as much as digits as its factorization.

1170421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563.

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

The square root of 1170421 is about 1081.8599724548. The cubic root of 1170421 is about 105.3854615221.

The spelling of 1170421 in words is "one million, one hundred seventy thousand, four hundred twenty-one".