77160620 has 24 divisors (see below), whose sum is σ = 171569664. Its totient is φ = 29048576.

The previous prime is 77160593. The next prime is 77160631. The reversal of 77160620 is 2606177.

It is a super-2 number, since 2×77160620² = 11907522557568800, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 113132 + ... + 113811.

It is an arithmetic number, because the mean of its divisors is an integer number (7148736).

Almost surely, 2^77160620 is an apocalyptic number.

It is an amenable number.

77160620 is an abundant number, since it is smaller than the sum of its proper divisors (94409044).

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

77160620 is a wasteful number, since it uses less digits than its factorization.

77160620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226969 (or 226967 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 77160620 is about 8784.1117934598. Note that the first 3 decimals coincide. The cubic root of 77160620 is about 425.7276944906.

Adding to 77160620 its reverse (2606177), we get a palindrome (79766797).

The spelling of 77160620 in words is "seventy-seven million, one hundred sixty thousand, six hundred twenty".