77342419 has 16 divisors (see below), whose sum is σ = 96638976. Its totient is φ = 60134400.

The previous prime is 77342417. The next prime is 77342429. The reversal of 77342419 is 91424377.

It is a cyclic number.

It is not a de Polignac number, because 77342419 - 2¹ = 77342417 is a prime.

It is a super-2 number, since 2×77342419² = 11963699553543122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77342411) 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 15 ways as a sum of consecutive naturals, for example, 48574 + ... + 50140.

It is an arithmetic number, because the mean of its divisors is an integer number (6039936).

Almost surely, 2^77342419 is an apocalyptic number.

77342419 is a deficient number, since it is larger than the sum of its proper divisors (19296557).

77342419 is a wasteful number, since it uses less digits than its factorization.

77342419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226.

The product of its digits is 42336, while the sum is 37.

The square root of 77342419 is about 8794.4538773024. The cubic root of 77342419 is about 426.0617861700.

It can be divided in two parts, 7734 and 2419, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 77342419 in words is "seventy-seven million, three hundred forty-two thousand, four hundred nineteen".