61873400 has 24 divisors (see below), whose sum is σ = 143856120. Its totient is φ = 24749280.

The previous prime is 61873393. The next prime is 61873433. The reversal of 61873400 is 437816.

61873400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5 ways as a sum of consecutive naturals, for example, 154484 + ... + 154883.

It is an arithmetic number, because the mean of its divisors is an integer number (5994005).

Almost surely, 2^61873400 is an apocalyptic number.

It is an amenable number.

61873400 is an abundant number, since it is smaller than the sum of its proper divisors (81982720).

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

61873400 is a wasteful number, since it uses less digits than its factorization.

61873400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309383 (or 309374 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 61873400 is about 7865.9646579425. The cubic root of 61873400 is about 395.5195854221.

The spelling of 61873400 in words is "sixty-one million, eight hundred seventy-three thousand, four hundred".