3420723 has 8 divisors (see below), whose sum is σ = 4829328. Its totient is φ = 2146304.

The previous prime is 3420713. The next prime is 3420727. The reversal of 3420723 is 3270243.

It is a happy number.

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 3420723 - 2⁵ = 3420691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3420723.

It is not an unprimeable number, because it can be changed into a prime (3420727) 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, 33486 + ... + 33587.

It is an arithmetic number, because the mean of its divisors is an integer number (603666).

Almost surely, 2^3420723 is an apocalyptic number.

3420723 is a deficient number, since it is larger than the sum of its proper divisors (1408605).

3420723 is a wasteful number, since it uses less digits than its factorization.

3420723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67093.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 3420723 is about 1849.5196673731. The cubic root of 3420723 is about 150.6743416570.

Adding to 3420723 its reverse (3270243), we get a palindrome (6690966).

The spelling of 3420723 in words is "three million, four hundred twenty thousand, seven hundred twenty-three".