77469008 has 20 divisors (see below), whose sum is σ = 153758388. Its totient is φ = 37789440.

The previous prime is 77469001. The next prime is 77469011. The reversal of 77469008 is 80096477.

It can be written as a sum of positive squares in 2 ways, for example, as 2334784 + 75134224 = 1528^2 + 8668^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77469001) 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 3 ways as a sum of consecutive naturals, for example, 58391 + ... + 59702.

Almost surely, 2^77469008 is an apocalyptic number.

It is an amenable number.

77469008 is a deficient number, since it is larger than the sum of its proper divisors (76289380).

77469008 is a wasteful number, since it uses less digits than its factorization.

77469008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118142 (or 118136 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 77469008 is about 8801.6480275003. The cubic root of 77469008 is about 426.2941094637.

The spelling of 77469008 in words is "seventy-seven million, four hundred sixty-nine thousand, eight".