61934520 has 64 divisors (see below), whose sum is σ = 188871840. Its totient is φ = 16243200.

The previous prime is 61934479. The next prime is 61934531. The reversal of 61934520 is 2543916.

61934520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3090 + ... + 11550.

Almost surely, 2^61934520 is an apocalyptic number.

61934520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61934520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94435920).

61934520 is an abundant number, since it is smaller than the sum of its proper divisors (126937320).

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

61934520 is a wasteful number, since it uses less digits than its factorization.

61934520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8536 (or 8532 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 61934520 is about 7869.8487914318. The cubic root of 61934520 is about 395.6497770795.

The spelling of 61934520 in words is "sixty-one million, nine hundred thirty-four thousand, five hundred twenty".