7830401 has 4 divisors (see below), whose sum is σ = 7929600. Its totient is φ = 7731204.

The previous prime is 7830371. The next prime is 7830437. The reversal of 7830401 is 1040387.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7830401 - 2¹⁰ = 7829377 is a prime.

It is a super-2 number, since 2×7830401² = 122630359641602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7830481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49481 + ... + 49638.

It is an arithmetic number, because the mean of its divisors is an integer number (1982400).

Almost surely, 2^7830401 is an apocalyptic number.

It is an amenable number.

7830401 is a deficient number, since it is larger than the sum of its proper divisors (99199).

7830401 is an equidigital number, since it uses as much as digits as its factorization.

7830401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99198.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 7830401 is about 2798.2853678637. The cubic root of 7830401 is about 198.5765682443.

Adding to 7830401 its reverse (1040387), we get a palindrome (8870788).

The spelling of 7830401 in words is "seven million, eight hundred thirty thousand, four hundred one".