61604461 has 8 divisors (see below), whose sum is σ = 62298720. Its totient is φ = 60914448.

The previous prime is 61604407. The next prime is 61604467. The reversal of 61604461 is 16440616.

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

It is a cyclic number.

It is not a de Polignac number, because 61604461 - 2²¹ = 59507309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61604467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34390 + ... + 36136.

It is an arithmetic number, because the mean of its divisors is an integer number (7787340).

Almost surely, 2^61604461 is an apocalyptic number.

It is an amenable number.

61604461 is a deficient number, since it is larger than the sum of its proper divisors (694259).

61604461 is a wasteful number, since it uses less digits than its factorization.

61604461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 61604461 is about 7848.8509350095. The cubic root of 61604461 is about 394.9456978175.

The spelling of 61604461 in words is "sixty-one million, six hundred four thousand, four hundred sixty-one".