77448076 has 12 divisors (see below), whose sum is σ = 135674280. Its totient is φ = 38684000.

The previous prime is 77448071. The next prime is 77448131. The reversal of 77448076 is 67084477.

It is a super-2 number, since 2×77448076² = 11996408952203552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77448071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5425 + ... + 13576.

It is an arithmetic number, because the mean of its divisors is an integer number (11306190).

Almost surely, 2^77448076 is an apocalyptic number.

It is an amenable number.

77448076 is a deficient number, since it is larger than the sum of its proper divisors (58226204).

77448076 is a wasteful number, since it uses less digits than its factorization.

77448076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20024 (or 20022 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 77448076 is about 8800.4588516736. The cubic root of 77448076 is about 426.2557113467.

The spelling of 77448076 in words is "seventy-seven million, four hundred forty-eight thousand, seventy-six".