3951229 has 8 divisors (see below), whose sum is σ = 4105728. Its totient is φ = 3798480.

The previous prime is 3951209. The next prime is 3951247. The reversal of 3951229 is 9221593.

3951229 = 43² + 44² + ... + 228².

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 3951229 - 2⁵ = 3951197 is a prime.

It is a super-2 number, since 2×3951229² = 31224421220882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3951229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3951209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5784 + ... + 6430.

It is an arithmetic number, because the mean of its divisors is an integer number (513216).

Almost surely, 2^3951229 is an apocalyptic number.

It is an amenable number.

3951229 is a deficient number, since it is larger than the sum of its proper divisors (154499).

3951229 is a wasteful number, since it uses less digits than its factorization.

3951229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its digits is 4860, while the sum is 31.

The square root of 3951229 is about 1987.7698558938. The cubic root of 3951229 is about 158.0923057278.

The spelling of 3951229 in words is "three million, nine hundred fifty-one thousand, two hundred twenty-nine".