3422729 has 4 divisors (see below), whose sum is σ = 3624084. Its totient is φ = 3221376.

The previous prime is 3422723. The next prime is 3422737. The reversal of 3422729 is 9272243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9272243 = 23 ⋅403141.

It can be written as a sum of positive squares in 2 ways, for example, as 1885129 + 1537600 = 1373^2 + 1240^2 .

It is a cyclic number.

It is not a de Polignac number, because 3422729 - 2¹² = 3418633 is a prime.

It is a d-powerful number, because it can be written as 3¹² + 4⁹ + 2⁵ + 2⁹ + 7 + 2²¹ + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3422723) 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, 100652 + ... + 100685.

It is an arithmetic number, because the mean of its divisors is an integer number (906021).

Almost surely, 2^3422729 is an apocalyptic number.

It is an amenable number.

3422729 is a deficient number, since it is larger than the sum of its proper divisors (201355).

3422729 is a wasteful number, since it uses less digits than its factorization.

3422729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201354.

The product of its digits is 6048, while the sum is 29.

The square root of 3422729 is about 1850.0618908566. The cubic root of 3422729 is about 150.7037890054.

The spelling of 3422729 in words is "three million, four hundred twenty-two thousand, seven hundred twenty-nine".