74789477 has 16 divisors (see below), whose sum is σ = 91994112. Its totient is φ = 59339520.

The previous prime is 74789471. The next prime is 74789479. The reversal of 74789477 is 77498747.

It is not a de Polignac number, because 74789477 - 2²⁴ = 58012261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74789471) 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, 2108 + ... + 12410.

It is an arithmetic number, because the mean of its divisors is an integer number (5749632).

Almost surely, 2^74789477 is an apocalyptic number.

It is an amenable number.

74789477 is a deficient number, since it is larger than the sum of its proper divisors (17204635).

74789477 is a wasteful number, since it uses less digits than its factorization.

74789477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10388.

The product of its digits is 2765952, while the sum is 53.

The square root of 74789477 is about 8648.0909454052. The cubic root of 74789477 is about 421.3213807135.

The spelling of 74789477 in words is "seventy-four million, seven hundred eighty-nine thousand, four hundred seventy-seven".