61293880 has 32 divisors (see below), whose sum is σ = 139209840. Its totient is φ = 24286720.

The previous prime is 61293871. The next prime is 61293889. The reversal of 61293880 is 8839216.

61293880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61293871) and next prime (61293889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61293889) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2881 + ... + 11440.

Almost surely, 2^61293880 is an apocalyptic number.

It is an amenable number.

61293880 is an abundant number, since it is smaller than the sum of its proper divisors (77915960).

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

61293880 is a wasteful number, since it uses less digits than its factorization.

61293880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14439 (or 14435 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 61293880 is about 7829.0408097033. The cubic root of 61293880 is about 394.2808685555.

The spelling of 61293880 in words is "sixty-one million, two hundred ninety-three thousand, eight hundred eighty".