343420501 has 4 divisors (see below), whose sum is σ = 343510092. Its totient is φ = 343330912.

The previous prime is 343420499. The next prime is 343420507. The reversal of 343420501 is 105024343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 105024343 = 19 ⋅5527597.

It can be written as a sum of positive squares in 2 ways, for example, as 204204100 + 139216401 = 14290^2 + 11799^2 .

It is a cyclic number.

It is not a de Polignac number, because 343420501 - 2¹ = 343420499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343420507) 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, 38776 + ... + 46801.

It is an arithmetic number, because the mean of its divisors is an integer number (85877523).

Almost surely, 2^343420501 is an apocalyptic number.

It is an amenable number.

343420501 is a deficient number, since it is larger than the sum of its proper divisors (89591).

343420501 is an equidigital number, since it uses as much as digits as its factorization.

343420501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89590.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 343420501 is about 18531.6081601139. The cubic root of 343420501 is about 700.2859382851.

Adding to 343420501 its reverse (105024343), we get a palindrome (448444844).

The spelling of 343420501 in words is "three hundred forty-three million, four hundred twenty thousand, five hundred one".