3705320 has 32 divisors (see below), whose sum is σ = 8829000. Its totient is φ = 1394688.

The previous prime is 3705311. The next prime is 3705329. The reversal of 3705320 is 235073.

It is an interprime number because it is at equal distance from previous prime (3705311) and next prime (3705329).

It can be written as a sum of positive squares in 4 ways, for example, as 2709316 + 996004 = 1646^2 + 998^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3705292 and 3705301.

It is not an unprimeable number, because it can be changed into a prime (3705329) 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, 2045 + ... + 3404.

Almost surely, 2^3705320 is an apocalyptic number.

It is an amenable number.

3705320 is an abundant number, since it is smaller than the sum of its proper divisors (5123680).

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

3705320 is a wasteful number, since it uses less digits than its factorization.

3705320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477 (or 5473 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 3705320 is about 1924.9207775906. The cubic root of 3705320 is about 154.7421310625.

It can be divided in two parts, 37053 and 20, that added together give a palindrome (37073).

The spelling of 3705320 in words is "three million, seven hundred five thousand, three hundred twenty".