61969080 has 128 divisors (see below), whose sum is σ = 202409280. Its totient is φ = 15114240.

The previous prime is 61969079. The next prime is 61969099. The reversal of 61969080 is 8096916.

61969080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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 31 ways as a sum of consecutive naturals, for example, 75070 + ... + 75890.

Almost surely, 2^61969080 is an apocalyptic number.

61969080 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 61969080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101204640).

61969080 is an abundant number, since it is smaller than the sum of its proper divisors (140440200).

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

61969080 is a wasteful number, since it uses less digits than its factorization.

61969080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 61969080 is about 7872.0442071929. The cubic root of 61969080 is about 395.7233553993.

The spelling of 61969080 in words is "sixty-one million, nine hundred sixty-nine thousand, eighty".