61400773 has 20 divisors (see below), whose sum is σ = 72601920. Its totient is φ = 51919224.

The previous prime is 61400771. The next prime is 61400783. The reversal of 61400773 is 37700416.

It is not a de Polignac number, because 61400773 - 2¹ = 61400771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61400771) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 256788 + ... + 257026.

It is an arithmetic number, because the mean of its divisors is an integer number (3630096).

Almost surely, 2^61400773 is an apocalyptic number.

It is an amenable number.

61400773 is a deficient number, since it is larger than the sum of its proper divisors (11201147).

61400773 is an equidigital number, since it uses as much as digits as its factorization.

61400773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 61400773 is about 7835.8645343063. The cubic root of 61400773 is about 394.5099364962.

The spelling of 61400773 in words is "sixty-one million, four hundred thousand, seven hundred seventy-three".