77452116 has 96 divisors (see below), whose sum is σ = 216910848. Its totient is φ = 21047040.

The previous prime is 77452097. The next prime is 77452129. The reversal of 77452116 is 61125477.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147831 + ... + 148353.

It is an arithmetic number, because the mean of its divisors is an integer number (2259488).

Almost surely, 2^77452116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77452116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108455424).

77452116 is an abundant number, since it is smaller than the sum of its proper divisors (139458732).

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

77452116 is a wasteful number, since it uses less digits than its factorization.

77452116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 619 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 77452116 is about 8800.6883821665. The cubic root of 77452116 is about 426.2631229495.

The spelling of 77452116 in words is "seventy-seven million, four hundred fifty-two thousand, one hundred sixteen".