3980465 has 8 divisors (see below), whose sum is σ = 5057640. Its totient is φ = 2996992.

The previous prime is 3980461. The next prime is 3980479. The reversal of 3980465 is 5640893.

It can be written as a sum of positive squares in 4 ways, for example, as 185761 + 3794704 = 431^2 + 1948^2 .

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 3980465 - 2² = 3980461 is a prime.

It is an Ulam number.

It is a plaindrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3980461) 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, 23330 + ... + 23499.

It is an arithmetic number, because the mean of its divisors is an integer number (632205).

Almost surely, 2^3980465 is an apocalyptic number.

It is an amenable number.

3980465 is a deficient number, since it is larger than the sum of its proper divisors (1077175).

3980465 is a wasteful number, since it uses less digits than its factorization.

3980465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46851.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 3980465 is about 1995.1102726416. The cubic root of 3980465 is about 158.4812677096.

The spelling of 3980465 in words is "three million, nine hundred eighty thousand, four hundred sixty-five".