77536494 has 64 divisors (see below), whose sum is σ = 201761280. Its totient is φ = 21608640.

The previous prime is 77536493. The next prime is 77536499. The reversal of 77536494 is 49463577.

77536494 is a `hidden beast` number, since 77 + 536 + 49 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77536493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12997 + ... + 17999.

It is an arithmetic number, because the mean of its divisors is an integer number (3152520).

Almost surely, 2^77536494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77536494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100880640).

77536494 is an abundant number, since it is smaller than the sum of its proper divisors (124224786).

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

77536494 is a wasteful number, since it uses less digits than its factorization.

77536494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062 (or 5056 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 77536494 is about 8805.4809067989. The cubic root of 77536494 is about 426.4178601746.

The spelling of 77536494 in words is "seventy-seven million, five hundred thirty-six thousand, four hundred ninety-four".