77480469 has 20 divisors (see below), whose sum is σ = 126265920. Its totient is φ = 46957320.

The previous prime is 77480467. The next prime is 77480477. The reversal of 77480469 is 96408477.

It is not a de Polignac number, because 77480469 - 2¹ = 77480467 is a prime.

It is a super-2 number, since 2×77480469² = 12006446152919922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77480467) 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 19 ways as a sum of consecutive naturals, for example, 42589 + ... + 44370.

It is an arithmetic number, because the mean of its divisors is an integer number (6313296).

Almost surely, 2^77480469 is an apocalyptic number.

It is an amenable number.

77480469 is a deficient number, since it is larger than the sum of its proper divisors (48785451).

77480469 is a wasteful number, since it uses less digits than its factorization.

77480469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86982 (or 86973 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 77480469 is about 8802.2990746736. The cubic root of 77480469 is about 426.3151308415.

The spelling of 77480469 in words is "seventy-seven million, four hundred eighty thousand, four hundred sixty-nine".