6613402 has 4 divisors (see below), whose sum is σ = 9920106. Its totient is φ = 3306700.

The previous prime is 6613361. The next prime is 6613429. The reversal of 6613402 is 2043166.

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

It can be written as a sum of positive squares in only one way, i.e., 6205081 + 408321 = 2491^2 + 639^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1653349 + ... + 1653352.

Almost surely, 2^6613402 is an apocalyptic number.

6613402 is a deficient number, since it is larger than the sum of its proper divisors (3306704).

6613402 is a wasteful number, since it uses less digits than its factorization.

6613402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306703.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 6613402 is about 2571.6535536499. The cubic root of 6613402 is about 187.7046251968.

Adding to 6613402 its reverse (2043166), we get a palindrome (8656568).

The spelling of 6613402 in words is "six million, six hundred thirteen thousand, four hundred two".