61606394 has 8 divisors (see below), whose sum is σ = 92442900. Its totient is φ = 30792096.

The previous prime is 61606387. The next prime is 61606399. The reversal of 61606394 is 49360616.

It can be written as a sum of positive squares in 2 ways, for example, as 61230625 + 375769 = 7825^2 + 613^2 .

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

It is not an unprimeable number, because it can be changed into a prime (61606399) 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, 8072 + ... + 13724.

Almost surely, 2^61606394 is an apocalyptic number.

61606394 is a deficient number, since it is larger than the sum of its proper divisors (30836506).

61606394 is a wasteful number, since it uses less digits than its factorization.

61606394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11104.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 61606394 is about 7848.9740730875. The cubic root of 61606394 is about 394.9498285900.

The spelling of 61606394 in words is "sixty-one million, six hundred six thousand, three hundred ninety-four".