77266236 has 48 divisors (see below), whose sum is σ = 191520000. Its totient is φ = 24175872.

The previous prime is 77266213. The next prime is 77266243. The reversal of 77266236 is 63266277.

It is a junction number, because it is equal to n+sod(n) for n = 77266194 and 77266203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24265 + ... + 27263.

It is an arithmetic number, because the mean of its divisors is an integer number (3990000).

Almost surely, 2^77266236 is an apocalyptic number.

77266236 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77266236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95760000).

77266236 is an abundant number, since it is smaller than the sum of its proper divisors (114253764).

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

77266236 is a wasteful number, since it uses less digits than its factorization.

77266236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138 (or 3136 counting only the distinct ones).

The product of its digits is 127008, while the sum is 39.

The square root of 77266236 is about 8790.1215008668. The cubic root of 77266236 is about 425.9218486098.

The spelling of 77266236 in words is "seventy-seven million, two hundred sixty-six thousand, two hundred thirty-six".