61904934 has 72 divisors (see below), whose sum is σ = 168058800. Its totient is φ = 16323552.

The previous prime is 61904911. The next prime is 61904963. The reversal of 61904934 is 43940916.

61904934 is a `hidden beast` number, since 619 + 0 + 4 + 9 + 34 = 666.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 8767 + ... + 14165.

It is an arithmetic number, because the mean of its divisors is an integer number (2334150).

Almost surely, 2^61904934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61904934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84029400).

61904934 is an abundant number, since it is smaller than the sum of its proper divisors (106153866).

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

61904934 is a wasteful number, since it uses less digits than its factorization.

61904934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5434 (or 5424 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 61904934 is about 7867.9688611483. The cubic root of 61904934 is about 395.5867666683.

The spelling of 61904934 in words is "sixty-one million, nine hundred four thousand, nine hundred thirty-four".