3219725 has 12 divisors (see below), whose sum is σ = 4131060. Its totient is φ = 2486400.

The previous prime is 3219707. The next prime is 3219757. The reversal of 3219725 is 5279123.

It can be written as a sum of positive squares in 6 ways, for example, as 111556 + 3108169 = 334^2 + 1763^2 .

It is not a de Polignac number, because 3219725 - 2¹² = 3215629 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1496 + ... + 2945.

It is an arithmetic number, because the mean of its divisors is an integer number (344255).

Almost surely, 2^3219725 is an apocalyptic number.

It is an amenable number.

3219725 is a deficient number, since it is larger than the sum of its proper divisors (911335).

3219725 is a wasteful number, since it uses less digits than its factorization.

3219725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480 (or 4475 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 3219725 is about 1794.3592171023. The cubic root of 3219725 is about 147.6634212851.

The spelling of 3219725 in words is "three million, two hundred nineteen thousand, seven hundred twenty-five".