3962805 has 64 divisors (see below), whose sum is σ = 8183808. Its totient is φ = 1589760.

The previous prime is 3962789. The next prime is 3962807. The reversal of 3962805 is 5082693.

It is a happy number.

3962805 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 3962805 - 2⁴ = 3962789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

3962805 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3962807) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54249 + ... + 54321.

It is an arithmetic number, because the mean of its divisors is an integer number (127872).

Almost surely, 2^3962805 is an apocalyptic number.

3962805 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3962805 is an abundant number, since it is smaller than the sum of its proper divisors (4221003).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3962805 is a wasteful number, since it uses less digits than its factorization.

3962805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 3962805 is about 1990.6795322201. The cubic root of 3962805 is about 158.2465440024.

The spelling of 3962805 in words is "three million, nine hundred sixty-two thousand, eight hundred five".