77489458 has 8 divisors (see below), whose sum is σ = 116884080. Its totient is φ = 38528100.

The previous prime is 77489449. The next prime is 77489521. The reversal of 77489458 is 85498477.

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

It is a super-2 number, since 2×77489458² = 12009232202267528, which contains 22 as substring.

It is an unprimeable number.

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, 107868 + ... + 108583.

It is an arithmetic number, because the mean of its divisors is an integer number (14610510).

Almost surely, 2^77489458 is an apocalyptic number.

77489458 is a deficient number, since it is larger than the sum of its proper divisors (39394622).

77489458 is a wasteful number, since it uses less digits than its factorization.

77489458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216632.

The product of its digits is 2257920, while the sum is 52.

The square root of 77489458 is about 8802.8096651013. The cubic root of 77489458 is about 426.3316167103.

The spelling of 77489458 in words is "seventy-seven million, four hundred eighty-nine thousand, four hundred fifty-eight".