77748982 has 8 divisors (see below), whose sum is σ = 117713736. Its totient is φ = 38511072.

The previous prime is 77748977. The next prime is 77749027. The reversal of 77748982 is 28984777.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181443 + ... + 181870.

It is an arithmetic number, because the mean of its divisors is an integer number (14714217).

Almost surely, 2^77748982 is an apocalyptic number.

77748982 is a deficient number, since it is larger than the sum of its proper divisors (39964754).

77748982 is a wasteful number, since it uses less digits than its factorization.

77748982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363422.

The product of its digits is 1580544, while the sum is 52.

The square root of 77748982 is about 8817.5383186012. The cubic root of 77748982 is about 426.8070361985.

The spelling of 77748982 in words is "seventy-seven million, seven hundred forty-eight thousand, nine hundred eighty-two".