3720394 has 4 divisors (see below), whose sum is σ = 5580594. Its totient is φ = 1860196.

The previous prime is 3720391. The next prime is 3720397. The reversal of 3720394 is 4930273.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3720391) and next prime (3720397).

It can be written as a sum of positive squares in only one way, i.e., 2975625 + 744769 = 1725^2 + 863^2 .

It is a d-powerful number, because it can be written as 3¹³ + 7² + 2 + 0 + 3¹³ + 9⁶ + 4⁴ .

It is not an unprimeable number, because it can be changed into a prime (3720391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 930097 + ... + 930100.

Almost surely, 2^3720394 is an apocalyptic number.

3720394 is a deficient number, since it is larger than the sum of its proper divisors (1860200).

3720394 is a wasteful number, since it uses less digits than its factorization.

3720394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860199.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 3720394 is about 1928.8322892362. The cubic root of 3720394 is about 154.9516880303.

It can be divided in two parts, 3720 and 394, that added together give a palindrome (4114).

The spelling of 3720394 in words is "three million, seven hundred twenty thousand, three hundred ninety-four".