77161036 has 12 divisors (see below), whose sum is σ = 135535680. Its totient is φ = 38436560.

The previous prime is 77161031. The next prime is 77161037. The reversal of 77161036 is 63016177.

It is a junction number, because it is equal to n+sod(n) for n = 77160989 and 77161007.

It is not an unprimeable number, because it can be changed into a prime (77161031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34780 + ... + 36931.

It is an arithmetic number, because the mean of its divisors is an integer number (11294640).

Almost surely, 2^77161036 is an apocalyptic number.

It is an amenable number.

77161036 is a deficient number, since it is larger than the sum of its proper divisors (58374644).

77161036 is a wasteful number, since it uses less digits than its factorization.

77161036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71984 (or 71982 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 77161036 is about 8784.1354725437. The cubic root of 77161036 is about 425.7284595717.

The spelling of 77161036 in words is "seventy-seven million, one hundred sixty-one thousand, thirty-six".