77674390 has 16 divisors (see below), whose sum is σ = 140674608. Its totient is φ = 30878496.

The previous prime is 77674367. The next prime is 77674397. The reversal of 77674390 is 9347677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77674397) 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 7 ways as a sum of consecutive naturals, for example, 22197 + ... + 25456.

It is an arithmetic number, because the mean of its divisors is an integer number (8792163).

Almost surely, 2^77674390 is an apocalyptic number.

77674390 is a deficient number, since it is larger than the sum of its proper divisors (63000218).

77674390 is a wasteful number, since it uses less digits than its factorization.

77674390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47823.

The product of its (nonzero) digits is 222264, while the sum is 43.

The square root of 77674390 is about 8813.3075516516. The cubic root of 77674390 is about 426.6705003182.

The spelling of 77674390 in words is "seventy-seven million, six hundred seventy-four thousand, three hundred ninety".