61903434 has 16 divisors (see below), whose sum is σ = 124903872. Its totient is φ = 20451648.

The previous prime is 61903433. The next prime is 61903451. The reversal of 61903434 is 43430916.

It is not an unprimeable number, because it can be changed into a prime (61903433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44974 + ... + 46329.

It is an arithmetic number, because the mean of its divisors is an integer number (7806492).

Almost surely, 2^61903434 is an apocalyptic number.

61903434 is an abundant number, since it is smaller than the sum of its proper divisors (63000438).

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

61903434 is a wasteful number, since it uses less digits than its factorization.

61903434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91421.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 61903434 is about 7867.8735373670. The cubic root of 61903434 is about 395.5835715275.

The spelling of 61903434 in words is "sixty-one million, nine hundred three thousand, four hundred thirty-four".