3952789 has 8 divisors (see below), whose sum is σ = 4214808. Its totient is φ = 3694080.

The previous prime is 3952771. The next prime is 3952813. The reversal of 3952789 is 9872593.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 592900 + 3359889 = 770^2 + 1833^2 .

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 3952789 - 2¹³ = 3944597 is a prime.

It is a Duffinian number.

3952789 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3952759) 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, 1929 + ... + 3409.

It is an arithmetic number, because the mean of its divisors is an integer number (526851).

Almost surely, 2^3952789 is an apocalyptic number.

It is an amenable number.

3952789 is a deficient number, since it is larger than the sum of its proper divisors (262019).

3952789 is a wasteful number, since it uses less digits than its factorization.

3952789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655.

The product of its digits is 136080, while the sum is 43.

The square root of 3952789 is about 1988.1622167218. The cubic root of 3952789 is about 158.1131086685.

The spelling of 3952789 in words is "three million, nine hundred fifty-two thousand, seven hundred eighty-nine".