77022249 has 8 divisors (see below), whose sum is σ = 102737280. Its totient is φ = 51327696.

The previous prime is 77022241. The next prime is 77022251. The reversal of 77022249 is 94222077.

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

It is not a de Polignac number, because 77022249 - 2³ = 77022241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77022241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10272 + ... + 16110.

It is an arithmetic number, because the mean of its divisors is an integer number (12842160).

Almost surely, 2^77022249 is an apocalyptic number.

It is an amenable number.

77022249 is a deficient number, since it is larger than the sum of its proper divisors (25715031).

77022249 is a wasteful number, since it uses less digits than its factorization.

77022249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10239.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 77022249 is about 8776.2320502594. The cubic root of 77022249 is about 425.4730584897.

The spelling of 77022249 in words is "seventy-seven million, twenty-two thousand, two hundred forty-nine".