61077812 has 12 divisors (see below), whose sum is σ = 110334336. Its totient is φ = 29553720.

The previous prime is 61077767. The next prime is 61077817. The reversal of 61077812 is 21877016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61077817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246158 + ... + 246405.

It is an arithmetic number, because the mean of its divisors is an integer number (9194528).

Almost surely, 2^61077812 is an apocalyptic number.

61077812 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

61077812 is a deficient number, since it is larger than the sum of its proper divisors (49256524).

61077812 is a wasteful number, since it uses less digits than its factorization.

61077812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492598 (or 492596 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 61077812 is about 7815.2294911922. The cubic root of 61077812 is about 393.8170279106.

The spelling of 61077812 in words is "sixty-one million, seventy-seven thousand, eight hundred twelve".