5656394 has 4 divisors (see below), whose sum is σ = 8484594. Its totient is φ = 2828196.

The previous prime is 5656381. The next prime is 5656397. The reversal of 5656394 is 4936565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4936565 = 5 ⋅987313.

It can be written as a sum of positive squares in only one way, i.e., 3367225 + 2289169 = 1835^2 + 1513^2 .

It is not an unprimeable number, because it can be changed into a prime (5656397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1414097 + ... + 1414100.

Almost surely, 2^5656394 is an apocalyptic number.

5656394 is a deficient number, since it is larger than the sum of its proper divisors (2828200).

5656394 is a wasteful number, since it uses less digits than its factorization.

5656394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828199.

The product of its digits is 97200, while the sum is 38.

The square root of 5656394 is about 2378.3174725003. The cubic root of 5656394 is about 178.1749111801.

The spelling of 5656394 in words is "five million, six hundred fifty-six thousand, three hundred ninety-four".