61603434 has 96 divisors (see below), whose sum is σ = 148262400. Its totient is φ = 18416160.

The previous prime is 61603433. The next prime is 61603441. The reversal of 61603434 is 43430616.

61603434 is a `hidden beast` number, since 616 + 0 + 3 + 43 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 61603398 and 61603407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61603433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 867619 + ... + 867689.

It is an arithmetic number, because the mean of its divisors is an integer number (1544400).

Almost surely, 2^61603434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61603434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74131200).

61603434 is an abundant number, since it is smaller than the sum of its proper divisors (86658966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61603434 is a wasteful number, since it uses less digits than its factorization.

61603434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 61603434 is about 7848.7855111476. The cubic root of 61603434 is about 394.9435031091.

The spelling of 61603434 in words is "sixty-one million, six hundred three thousand, four hundred thirty-four".