3654394 has 4 divisors (see below), whose sum is σ = 5481594. Its totient is φ = 1827196.

The previous prime is 3654389. The next prime is 3654397. The reversal of 3654394 is 4934563.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4934563 = 419 ⋅11777.

It can be written as a sum of positive squares in only one way, i.e., 2059225 + 1595169 = 1435^2 + 1263^2 .

It is a d-powerful number, because it can be written as 3¹⁰ + 6⁶ + 5⁹ + 4⁴ + 3¹³ + 9³ + 4⁴ .

It is not an unprimeable number, because it can be changed into a prime (3654397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 913597 + ... + 913600.

Almost surely, 2^3654394 is an apocalyptic number.

3654394 is a deficient number, since it is larger than the sum of its proper divisors (1827200).

3654394 is a wasteful number, since it uses less digits than its factorization.

3654394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827199.

The product of its digits is 38880, while the sum is 34.

The square root of 3654394 is about 1911.6469339290. The cubic root of 3654394 is about 154.0299317769.

The spelling of 3654394 in words is "three million, six hundred fifty-four thousand, three hundred ninety-four".