77649852 has 24 divisors (see below), whose sum is σ = 207066496. Its totient is φ = 22185648.

The previous prime is 77649797. The next prime is 77649853. The reversal of 77649852 is 25894677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77649853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462118 + ... + 462285.

Almost surely, 2^77649852 is an apocalyptic number.

It is an amenable number.

77649852 is an abundant number, since it is smaller than the sum of its proper divisors (129416644).

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

77649852 is a wasteful number, since it uses less digits than its factorization.

77649852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924417 (or 924415 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 77649852 is about 8811.9153423078. The cubic root of 77649852 is about 426.6255659736.

The spelling of 77649852 in words is "seventy-seven million, six hundred forty-nine thousand, eight hundred fifty-two".