77322049 has 6 divisors (see below), whose sum is σ = 89946114. Its totient is φ = 66276000.

The previous prime is 77322031. The next prime is 77322059. The reversal of 77322049 is 94022377.

It can be written as a sum of positive squares in only one way, i.e., 75342400 + 1979649 = 8680^2 + 1407^2 .

It is not a de Polignac number, because 77322049 - 2⁵ = 77322017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77322059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 788952 + ... + 789049.

It is an arithmetic number, because the mean of its divisors is an integer number (14991019).

Almost surely, 2^77322049 is an apocalyptic number.

It is an amenable number.

77322049 is a deficient number, since it is larger than the sum of its proper divisors (12624065).

77322049 is a wasteful number, since it uses less digits than its factorization.

77322049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578015 (or 1578008 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 77322049 is about 8793.2956847817. The cubic root of 77322049 is about 426.0243783209.

It can be divided in two parts, 773 and 22049, that added together give a palindrome (22822).

The spelling of 77322049 in words is "seventy-seven million, three hundred twenty-two thousand, forty-nine".