61604206 has 8 divisors (see below), whose sum is σ = 92810520. Its totient is φ = 30667368.

The previous prime is 61604203. The next prime is 61604219. The reversal of 61604206 is 60240616.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61604203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66796 + ... + 67711.

It is an arithmetic number, because the mean of its divisors is an integer number (11601315).

Almost surely, 2^61604206 is an apocalyptic number.

61604206 is a deficient number, since it is larger than the sum of its proper divisors (31206314).

61604206 is a wasteful number, since it uses less digits than its factorization.

61604206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134738.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 61604206 is about 7848.8346905767. The cubic root of 61604206 is about 394.9451528824.

The spelling of 61604206 in words is "sixty-one million, six hundred four thousand, two hundred six".