77471074 has 12 divisors (see below), whose sum is σ = 123445314. Its totient is φ = 36456704.

The previous prime is 77471059. The next prime is 77471089. The reversal of 77471074 is 47017477.

It is an interprime number because it is at equal distance from previous prime (77471059) and next prime (77471089).

It can be written as a sum of positive squares in 3 ways, for example, as 77176225 + 294849 = 8785^2 + 543^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 66439 + ... + 67594.

Almost surely, 2^77471074 is an apocalyptic number.

77471074 is a deficient number, since it is larger than the sum of its proper divisors (45974240).

77471074 is a wasteful number, since it uses less digits than its factorization.

77471074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134069 (or 134052 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 37.

The square root of 77471074 is about 8801.7653911019. The cubic root of 77471074 is about 426.2978990040.

The spelling of 77471074 in words is "seventy-seven million, four hundred seventy-one thousand, seventy-four".