61400776 has 16 divisors (see below), whose sum is σ = 115637040. Its totient is φ = 30564240.

The previous prime is 61400771. The next prime is 61400783. The reversal of 61400776 is 67700416.

61400776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61400771) 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 3 ways as a sum of consecutive naturals, for example, 15090 + ... + 18721.

It is an arithmetic number, because the mean of its divisors is an integer number (7227315).

Almost surely, 2^61400776 is an apocalyptic number.

It is an amenable number.

61400776 is a deficient number, since it is larger than the sum of its proper divisors (54236264).

61400776 is a wasteful number, since it uses less digits than its factorization.

61400776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34044 (or 34040 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 61400776 is about 7835.8647257338. The cubic root of 61400776 is about 394.5099429213.

The spelling of 61400776 in words is "sixty-one million, four hundred thousand, seven hundred seventy-six".